7660665 has 48 divisors (see below), whose sum is σ = 14084928. Its totient is φ = 3846528.

The previous prime is 7660649. The next prime is 7660699. The reversal of 7660665 is 5660667.

It is not a de Polignac number, because 7660665 - 2⁴ = 7660649 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 71542 + ... + 71648.

It is an arithmetic number, because the mean of its divisors is an integer number (293436).

Almost surely, 2^7660665 is an apocalyptic number.

It is an amenable number.

7660665 is a deficient number, since it is larger than the sum of its proper divisors (6424263).

7660665 is a wasteful number, since it uses less digits than its factorization.

7660665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 7660665 is about 2767.7906351457. The cubic root of 7660665 is about 197.1312566313.

The spelling of 7660665 in words is "seven million, six hundred sixty thousand, six hundred sixty-five".