7665904 has 20 divisors (see below), whose sum is σ = 14913976. Its totient is φ = 3817152.

The previous prime is 7665899. The next prime is 7665907. The reversal of 7665904 is 4095667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7665907) 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, 3682 + ... + 5374.

Almost surely, 2^7665904 is an apocalyptic number.

It is an amenable number.

7665904 is a deficient number, since it is larger than the sum of its proper divisors (7248072).

7665904 is a wasteful number, since it uses less digits than its factorization.

7665904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984 (or 1978 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 7665904 is about 2768.7368961315. The cubic root of 7665904 is about 197.1761846417.

It can be divided in two parts, 766 and 5904, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 7665904 in words is "seven million, six hundred sixty-five thousand, nine hundred four".