74977665 has 16 divisors (see below), whose sum is σ = 137102208. Its totient is φ = 34275456.

The previous prime is 74977657. The next prime is 74977697. The reversal of 74977665 is 56677947.

It is not a de Polignac number, because 74977665 - 2³ = 74977657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356932 + ... + 357141.

It is an arithmetic number, because the mean of its divisors is an integer number (8568888).

Almost surely, 2^74977665 is an apocalyptic number.

It is an amenable number.

74977665 is a deficient number, since it is larger than the sum of its proper divisors (62124543).

74977665 is a wasteful number, since it uses less digits than its factorization.

74977665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714088.

The product of its digits is 2222640, while the sum is 51.

The square root of 74977665 is about 8658.9644299997. The cubic root of 74977665 is about 421.6744661200.

The spelling of 74977665 in words is "seventy-four million, nine hundred seventy-seven thousand, six hundred sixty-five".