57717993 has 8 divisors (see below), whose sum is σ = 76997088. Its totient is φ = 38458784.

The previous prime is 57717983. The next prime is 57718049. The reversal of 57717993 is 39971775.

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

It is a cyclic number.

It is not a de Polignac number, because 57717993 - 2⁶ = 57717929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57717923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4246 + ... + 11552.

It is an arithmetic number, because the mean of its divisors is an integer number (9624636).

Almost surely, 2^57717993 is an apocalyptic number.

It is an amenable number.

57717993 is a deficient number, since it is larger than the sum of its proper divisors (19279095).

57717993 is a wasteful number, since it uses less digits than its factorization.

57717993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9943.

The product of its digits is 416745, while the sum is 48.

The square root of 57717993 is about 7597.2358789233. The cubic root of 57717993 is about 386.4592799735.

The spelling of 57717993 in words is "fifty-seven million, seven hundred seventeen thousand, nine hundred ninety-three".