7665988 has 24 divisors (see below), whose sum is σ = 14888160. Its totient is φ = 3424320.

The previous prime is 7665979. The next prime is 7666003. The reversal of 7665988 is 8895667.

It is a super-2 number, since 2×7665988² = 117534744032288, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1120 + ... + 4072.

It is an arithmetic number, because the mean of its divisors is an integer number (620340).

Almost surely, 2^7665988 is an apocalyptic number.

It is an amenable number.

7665988 is a deficient number, since it is larger than the sum of its proper divisors (7222172).

7665988 is a wasteful number, since it uses less digits than its factorization.

7665988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027 (or 3025 counting only the distinct ones).

The product of its digits is 725760, while the sum is 49.

The square root of 7665988 is about 2768.7520654620. The cubic root of 7665988 is about 197.1769048325.

The spelling of 7665988 in words is "seven million, six hundred sixty-five thousand, nine hundred eighty-eight".