7077649 has 4 divisors (see below), whose sum is σ = 7125300. Its totient is φ = 7030000.

The previous prime is 7077617. The next prime is 7077667. The reversal of 7077649 is 9467707.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9467707 = 139 ⋅68113.

It can be written as a sum of positive squares in 2 ways, for example, as 2347024 + 4730625 = 1532^2 + 2175^2 .

It is a cyclic number.

It is not a de Polignac number, because 7077649 - 2⁵ = 7077617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7077149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23602 + ... + 23899.

It is an arithmetic number, because the mean of its divisors is an integer number (1781325).

Almost surely, 2^7077649 is an apocalyptic number.

It is an amenable number.

7077649 is a deficient number, since it is larger than the sum of its proper divisors (47651).

7077649 is a wasteful number, since it uses less digits than its factorization.

7077649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47650.

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 7077649 is about 2660.3851224964. The cubic root of 7077649 is about 191.9978388790.

The spelling of 7077649 in words is "seven million, seventy-seven thousand, six hundred forty-nine".