57068739 has 32 divisors (see below), whose sum is σ = 104061440. Its totient is φ = 30100896.

The previous prime is 57068719. The next prime is 57068797. The reversal of 57068739 is 93786075.

It is a happy number.

57068739 is a `hidden beast` number, since 570 + 6 + 8 + 73 + 9 = 666.

It is not a de Polignac number, because 57068739 - 2⁵ = 57068707 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57068694 and 57068703.

It is not an unprimeable number, because it can be changed into a prime (57068719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9157 + ... + 14070.

It is an arithmetic number, because the mean of its divisors is an integer number (3251920).

Almost surely, 2^57068739 is an apocalyptic number.

57068739 is a deficient number, since it is larger than the sum of its proper divisors (46992701).

57068739 is a wasteful number, since it uses less digits than its factorization.

57068739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23256 (or 23250 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 57068739 is about 7554.3854151082. The cubic root of 57068739 is about 385.0047539751.

The spelling of 57068739 in words is "fifty-seven million, sixty-eight thousand, seven hundred thirty-nine".