57879866 has 32 divisors (see below), whose sum is σ = 101191680. Its totient is φ = 24742080.

The previous prime is 57879863. The next prime is 57879881. The reversal of 57879866 is 66897875.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57879863) 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, 44615 + ... + 45893.

It is an arithmetic number, because the mean of its divisors is an integer number (3162240).

Almost surely, 2^57879866 is an apocalyptic number.

57879866 is a deficient number, since it is larger than the sum of its proper divisors (43311814).

57879866 is a wasteful number, since it uses less digits than its factorization.

57879866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331 (or 1309 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 56.

The square root of 57879866 is about 7607.8818339930. The cubic root of 57879866 is about 386.8202242188.

Subtracting 57879866 from its reverse (66897875), we obtain a square (9018009 = 3003²).

The spelling of 57879866 in words is "fifty-seven million, eight hundred seventy-nine thousand, eight hundred sixty-six".