57911693 has 8 divisors (see below), whose sum is σ = 66500160. Its totient is φ = 49402080.

The previous prime is 57911663. The next prime is 57911699. The reversal of 57911693 is 39611975.

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

It is not a de Polignac number, because 57911693 - 2⁶ = 57911629 is a prime.

It is a super-2 number, since 2×57911693² = 6707528372252498, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57911693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57911699) 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, 18128 + ... + 21081.

It is an arithmetic number, because the mean of its divisors is an integer number (8312520).

Almost surely, 2^57911693 is an apocalyptic number.

It is an amenable number.

57911693 is a deficient number, since it is larger than the sum of its proper divisors (8588467).

57911693 is a wasteful number, since it uses less digits than its factorization.

57911693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39427.

The product of its digits is 51030, while the sum is 41.

The square root of 57911693 is about 7609.9732588229. The cubic root of 57911693 is about 386.8911128382.

The spelling of 57911693 in words is "fifty-seven million, nine hundred eleven thousand, six hundred ninety-three".