312679918 has 16 divisors (see below), whose sum is σ = 480585600. Its totient is φ = 152494776.

The previous prime is 312679901. The next prime is 312679949. The reversal of 312679918 is 819976213.

It is a happy number.

It is a super-2 number, since 2×312679918² = 195537462240973448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74233 + ... + 78331.

It is an arithmetic number, because the mean of its divisors is an integer number (30036600).

Almost surely, 2^312679918 is an apocalyptic number.

312679918 is a deficient number, since it is larger than the sum of its proper divisors (167905682).

312679918 is a wasteful number, since it uses less digits than its factorization.

312679918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031.

The product of its digits is 163296, while the sum is 46.

The square root of 312679918 is about 17682.7576469283. The cubic root of 312679918 is about 678.7346118538.

The spelling of 312679918 in words is "three hundred twelve million, six hundred seventy-nine thousand, nine hundred eighteen".