57239670 has 16 divisors (see below), whose sum is σ = 137375280. Its totient is φ = 15263904.

The previous prime is 57239659. The next prime is 57239681. The reversal of 57239670 is 7693275.

It is an interprime number because it is at equal distance from previous prime (57239659) and next prime (57239681).

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, 953965 + ... + 954024.

It is an arithmetic number, because the mean of its divisors is an integer number (8585955).

Almost surely, 2^57239670 is an apocalyptic number.

57239670 is an abundant number, since it is smaller than the sum of its proper divisors (80135610).

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

57239670 is a wasteful number, since it uses less digits than its factorization.

57239670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907999.

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 57239670 is about 7565.6903188011. The cubic root of 57239670 is about 385.3887566966.

The spelling of 57239670 in words is "fifty-seven million, two hundred thirty-nine thousand, six hundred seventy".