57038687 has 4 divisors (see below), whose sum is σ = 57072360. Its totient is φ = 57005016.

The previous prime is 57038677. The next prime is 57038693. The reversal of 57038687 is 78683075.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57038687 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 (57038647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14153 + ... + 17730.

It is an arithmetic number, because the mean of its divisors is an integer number (14268090).

Almost surely, 2^57038687 is an apocalyptic number.

57038687 is a deficient number, since it is larger than the sum of its proper divisors (33673).

57038687 is a wasteful number, since it uses less digits than its factorization.

57038687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33672.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 57038687 is about 7552.3961098449. The cubic root of 57038687 is about 384.9371618363.

The spelling of 57038687 in words is "fifty-seven million, thirty-eight thousand, six hundred eighty-seven".