312664379 has 4 divisors (see below), whose sum is σ = 315586584. Its totient is φ = 309742176.

The previous prime is 312664367. The next prime is 312664397. The reversal of 312664379 is 973466213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973466213 = 167 ⋅5829139.

It is a cyclic number.

It is not a de Polignac number, because 312664379 - 2¹⁶ = 312598843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312664879) 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, 1460942 + ... + 1461155.

It is an arithmetic number, because the mean of its divisors is an integer number (78896646).

Almost surely, 2^312664379 is an apocalyptic number.

312664379 is a deficient number, since it is larger than the sum of its proper divisors (2922205).

312664379 is a wasteful number, since it uses less digits than its factorization.

312664379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922204.

The product of its digits is 163296, while the sum is 41.

The square root of 312664379 is about 17682.3182586447. The cubic root of 312664379 is about 678.7233681599.

The spelling of 312664379 in words is "three hundred twelve million, six hundred sixty-four thousand, three hundred seventy-nine".