57986966 has 32 divisors (see below), whose sum is σ = 95136768. Its totient is φ = 26403840.

The previous prime is 57986939. The next prime is 57986969. The reversal of 57986966 is 66968975.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57986969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151211 + ... + 151593.

It is an arithmetic number, because the mean of its divisors is an integer number (2973024).

Almost surely, 2^57986966 is an apocalyptic number.

57986966 is a deficient number, since it is larger than the sum of its proper divisors (37149802).

57986966 is a wasteful number, since it uses less digits than its factorization.

57986966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536.

The product of its digits is 4898880, while the sum is 56.

The square root of 57986966 is about 7614.9173337601. The cubic root of 57986966 is about 387.0586659099.

Subtracting 57986966 from its reverse (66968975), we obtain a square (8982009 = 2997²).

The spelling of 57986966 in words is "fifty-seven million, nine hundred eighty-six thousand, nine hundred sixty-six".