77057372 has 12 divisors (see below), whose sum is σ = 154114800. Its totient is φ = 33024576.

The previous prime is 77057371. The next prime is 77057381. The reversal of 77057372 is 27375077.

77057372 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77057371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375997 + ... + 1376052.

It is an arithmetic number, because the mean of its divisors is an integer number (12842900).

Almost surely, 2^77057372 is an apocalyptic number.

It is an amenable number.

77057372 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77057372 is a wasteful number, since it uses less digits than its factorization.

77057372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752060 (or 2752058 counting only the distinct ones).

The product of its (nonzero) digits is 72030, while the sum is 38.

The square root of 77057372 is about 8778.2328517760. The cubic root of 77057372 is about 425.5377221398.

The spelling of 77057372 in words is "seventy-seven million, fifty-seven thousand, three hundred seventy-two".