57347988 has 24 divisors (see below), whose sum is σ = 134702400. Its totient is φ = 18988800.

The previous prime is 57347977. The next prime is 57347999. The reversal of 57347988 is 88974375.

It is an interprime number because it is at equal distance from previous prime (57347977) and next prime (57347999).

It is a self number, because there is not a number n which added to its sum of digits gives 57347988.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14013 + ... + 17636.

It is an arithmetic number, because the mean of its divisors is an integer number (5612600).

Almost surely, 2^57347988 is an apocalyptic number.

It is an amenable number.

57347988 is an abundant number, since it is smaller than the sum of its proper divisors (77354412).

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

57347988 is a wasteful number, since it uses less digits than its factorization.

57347988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31807 (or 31805 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 51.

The square root of 57347988 is about 7572.8454361620. The cubic root of 57347988 is about 385.6317014650.

The spelling of 57347988 in words is "fifty-seven million, three hundred forty-seven thousand, nine hundred eighty-eight".