74772056 has 8 divisors (see below), whose sum is σ = 140197620. Its totient is φ = 37386024.

The previous prime is 74772053. The next prime is 74772073. The reversal of 74772056 is 65027747.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 4673246 + ... + 4673261.

Almost surely, 2^74772056 is an apocalyptic number.

It is an amenable number.

74772056 is a deficient number, since it is larger than the sum of its proper divisors (65425564).

74772056 is a wasteful number, since it uses less digits than its factorization.

74772056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9346513 (or 9346509 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 74772056 is about 8647.0836702324. The cubic root of 74772056 is about 421.2886648376.

The spelling of 74772056 in words is "seventy-four million, seven hundred seventy-two thousand, fifty-six".