57688439 has 8 divisors (see below), whose sum is σ = 61824480. Its totient is φ = 53688096.

The previous prime is 57688417. The next prime is 57688441. The reversal of 57688439 is 93488675.

57688439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57688439 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 (57688409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33044 + ... + 34745.

It is an arithmetic number, because the mean of its divisors is an integer number (7728060).

Almost surely, 2^57688439 is an apocalyptic number.

57688439 is a deficient number, since it is larger than the sum of its proper divisors (4136041).

57688439 is a wasteful number, since it uses less digits than its factorization.

57688439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67849.

The product of its digits is 1451520, while the sum is 50.

The square root of 57688439 is about 7595.2905803531. The cubic root of 57688439 is about 386.3933076661.

The spelling of 57688439 in words is "fifty-seven million, six hundred eighty-eight thousand, four hundred thirty-nine".