57917993 has 8 divisors (see below), whose sum is σ = 66482880. Its totient is φ = 49425840.

The previous prime is 57917971. The next prime is 57918011. The reversal of 57917993 is 39971975.

It is a happy number.

57917993 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 not a de Polignac number, because 57917993 - 2⁸ = 57917737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57917903) 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, 16463 + ... + 19668.

It is an arithmetic number, because the mean of its divisors is an integer number (8310360).

Almost surely, 2^57917993 is an apocalyptic number.

It is an amenable number.

57917993 is a deficient number, since it is larger than the sum of its proper divisors (8564887).

57917993 is a wasteful number, since it uses less digits than its factorization.

57917993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36367.

The product of its digits is 535815, while the sum is 50.

The square root of 57917993 is about 7610.3871780613. The cubic root of 57917993 is about 386.9051418164.

The spelling of 57917993 in words is "fifty-seven million, nine hundred seventeen thousand, nine hundred ninety-three".