7680669 has 4 divisors (see below), whose sum is σ = 10240896. Its totient is φ = 5120444.

The previous prime is 7680667. The next prime is 7680671. The reversal of 7680669 is 9660867.

It is a happy number.

7680669 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9660867 = 3 ⋅3220289.

It is an interprime number because it is at equal distance from previous prime (7680667) and next prime (7680671).

It is a cyclic number.

It is not a de Polignac number, because 7680669 - 2¹ = 7680667 is a prime.

It is a super-2 number, since 2×7680669² = 117985352575122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7680669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7680667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280109 + ... + 1280114.

It is an arithmetic number, because the mean of its divisors is an integer number (2560224).

Almost surely, 2^7680669 is an apocalyptic number.

It is an amenable number.

7680669 is a deficient number, since it is larger than the sum of its proper divisors (2560227).

7680669 is a wasteful number, since it uses less digits than its factorization.

7680669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560226.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 7680669 is about 2771.4019917724. The cubic root of 7680669 is about 197.3026945852.

The spelling of 7680669 in words is "seven million, six hundred eighty thousand, six hundred sixty-nine".