57872687 has 4 divisors (see below), whose sum is σ = 58853640. Its totient is φ = 56891736.

The previous prime is 57872677. The next prime is 57872693. The reversal of 57872687 is 78627875.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57872687 - 2⁴ = 57872671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57872627) 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, 490388 + ... + 490505.

It is an arithmetic number, because the mean of its divisors is an integer number (14713410).

Almost surely, 2^57872687 is an apocalyptic number.

57872687 is a deficient number, since it is larger than the sum of its proper divisors (980953).

57872687 is an equidigital number, since it uses as much as digits as its factorization.

57872687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980952.

The product of its digits is 1317120, while the sum is 50.

The square root of 57872687 is about 7607.4100060402. The cubic root of 57872687 is about 386.8042307631.

The spelling of 57872687 in words is "fifty-seven million, eight hundred seventy-two thousand, six hundred eighty-seven".