312696385 has 32 divisors (see below), whose sum is σ = 416731392. Its totient is φ = 224040960.

The previous prime is 312696383. The next prime is 312696409. The reversal of 312696385 is 583696213.

It is not a de Polignac number, because 312696385 - 2¹ = 312696383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312696383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 599925 + ... + 600445.

It is an arithmetic number, because the mean of its divisors is an integer number (13022856).

Almost surely, 2^312696385 is an apocalyptic number.

It is an amenable number.

312696385 is a deficient number, since it is larger than the sum of its proper divisors (104035007).

312696385 is a wasteful number, since it uses less digits than its factorization.

312696385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873.

The product of its digits is 233280, while the sum is 43.

The square root of 312696385 is about 17683.2232638736. The cubic root of 312696385 is about 678.7465266224.

The spelling of 312696385 in words is "three hundred twelve million, six hundred ninety-six thousand, three hundred eighty-five".