312864398 has 16 divisors (see below), whose sum is σ = 585097344. Its totient is φ = 121895160.

The previous prime is 312864371. The next prime is 312864401. The reversal of 312864398 is 893468213.

312864398 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1015640 + ... + 1015947.

It is an arithmetic number, because the mean of its divisors is an integer number (36568584).

Almost surely, 2^312864398 is an apocalyptic number.

312864398 is a deficient number, since it is larger than the sum of its proper divisors (272232946).

312864398 is a wasteful number, since it uses less digits than its factorization.

312864398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031607.

The product of its digits is 248832, while the sum is 44.

The square root of 312864398 is about 17687.9732586863. The cubic root of 312864398 is about 678.8680692511.

The spelling of 312864398 in words is "three hundred twelve million, eight hundred sixty-four thousand, three hundred ninety-eight".