7690769 has 8 divisors (see below), whose sum is σ = 7863240. Its totient is φ = 7520256.

The previous prime is 7690741. The next prime is 7690807. The reversal of 7690769 is 9670967.

It can be written as a sum of positive squares in 4 ways, for example, as 1254400 + 6436369 = 1120^2 + 2537^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7690769 is a prime.

It is a super-2 number, since 2×7690769² = 118295855622722, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7690169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9617 + ... + 10385.

It is an arithmetic number, because the mean of its divisors is an integer number (982905).

Almost surely, 2^7690769 is an apocalyptic number.

It is an amenable number.

7690769 is a deficient number, since it is larger than the sum of its proper divisors (172471).

7690769 is a wasteful number, since it uses less digits than its factorization.

7690769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979.

The product of its (nonzero) digits is 142884, while the sum is 44.

The square root of 7690769 is about 2773.2235755525. The cubic root of 7690769 is about 197.3891403696.

The spelling of 7690769 in words is "seven million, six hundred ninety thousand, seven hundred sixty-nine".