74772057 has 16 divisors (see below), whose sum is σ = 105799680. Its totient is φ = 46870032.

The previous prime is 74772053. The next prime is 74772073. The reversal of 74772057 is 75027747.

It is not a de Polignac number, because 74772057 - 2² = 74772053 is a prime.

It is a super-2 number, since 2×74772057² = 11181721016022498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74772053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5113 + ... + 13254.

It is an arithmetic number, because the mean of its divisors is an integer number (6612480).

Almost surely, 2^74772057 is an apocalyptic number.

It is an amenable number.

74772057 is a deficient number, since it is larger than the sum of its proper divisors (31027623).

74772057 is a wasteful number, since it uses less digits than its factorization.

74772057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18452.

The product of its (nonzero) digits is 96040, while the sum is 39.

The square root of 74772057 is about 8647.0837280554. The cubic root of 74772057 is about 421.2886667157.

The spelling of 74772057 in words is "seventy-four million, seven hundred seventy-two thousand, fifty-seven".