312089864 has 16 divisors (see below), whose sum is σ = 596210220. Its totient is φ = 153100480.

The previous prime is 312089821. The next prime is 312089867. The reversal of 312089864 is 468980213.

It can be written as a sum of positive squares in 2 ways, for example, as 307721764 + 4368100 = 17542^2 + 2090^2 .

It is not an unprimeable number, because it can be changed into a prime (312089867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367607 + ... + 368454.

Almost surely, 2^312089864 is an apocalyptic number.

It is an amenable number.

312089864 is a deficient number, since it is larger than the sum of its proper divisors (284120356).

312089864 is a wasteful number, since it uses less digits than its factorization.

312089864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736120 (or 736116 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 312089864 is about 17666.0653230990. The cubic root of 312089864 is about 678.3073994087.

The spelling of 312089864 in words is "three hundred twelve million, eighty-nine thousand, eight hundred sixty-four".