57089730 has 16 divisors (see below), whose sum is σ = 137015424. Its totient is φ = 15223920.

The previous prime is 57089687. The next prime is 57089741. The reversal of 57089730 is 3798075.

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, 951466 + ... + 951525.

It is an arithmetic number, because the mean of its divisors is an integer number (8563464).

Almost surely, 2^57089730 is an apocalyptic number.

57089730 is an abundant number, since it is smaller than the sum of its proper divisors (79925694).

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

57089730 is a wasteful number, since it uses less digits than its factorization.

57089730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903001.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 57089730 is about 7555.7746128375. The cubic root of 57089730 is about 385.0519522853.

The spelling of 57089730 in words is "fifty-seven million, eighty-nine thousand, seven hundred thirty".