57079986 has 8 divisors (see below), whose sum is σ = 114159984. Its totient is φ = 19026660.

The previous prime is 57079973. The next prime is 57079987. The reversal of 57079986 is 68997075.

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

57079986 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57079987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4756660 + ... + 4756671.

It is an arithmetic number, because the mean of its divisors is an integer number (14269998).

Almost surely, 2^57079986 is an apocalyptic number.

57079986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57079986 is a wasteful number, since it uses less digits than its factorization.

57079986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9513336.

The product of its (nonzero) digits is 952560, while the sum is 51.

The square root of 57079986 is about 7555.1297804869. The cubic root of 57079986 is about 385.0300443187.

The spelling of 57079986 in words is "fifty-seven million, seventy-nine thousand, nine hundred eighty-six".