312904863 has 20 divisors (see below), whose sum is σ = 492029560. Its totient is φ = 197623152.

The previous prime is 312904853. The next prime is 312904871. The reversal of 312904863 is 368409213.

It is not a de Polignac number, because 312904863 - 2⁴ = 312904847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312904853) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 100120 + ... + 103197.

It is an arithmetic number, because the mean of its divisors is an integer number (24601478).

Almost surely, 2^312904863 is an apocalyptic number.

312904863 is a deficient number, since it is larger than the sum of its proper divisors (179124697).

312904863 is a wasteful number, since it uses less digits than its factorization.

312904863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203348 (or 203339 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 312904863 is about 17689.1170780229. The cubic root of 312904863 is about 678.8973356174.

The spelling of 312904863 in words is "three hundred twelve million, nine hundred four thousand, eight hundred sixty-three".