312872873 has 2 divisors, whose sum is σ = 312872874. Its totient is φ = 312872872.

The previous prime is 312872803. The next prime is 312872881. The reversal of 312872873 is 378278213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220463104 + 92409769 = 14848^2 + 9613^2 .

It is a cyclic number.

It is not a de Polignac number, because 312872873 - 2⁸ = 312872617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312872873.

It is not a weakly prime, because it can be changed into another prime (312872803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156436436 + 156436437.

It is an arithmetic number, because the mean of its divisors is an integer number (156436437).

Almost surely, 2^312872873 is an apocalyptic number.

It is an amenable number.

312872873 is a deficient number, since it is larger than the sum of its proper divisors (1).

312872873 is an equidigital number, since it uses as much as digits as its factorization.

312872873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 41.

The square root of 312872873 is about 17688.2128266255. The cubic root of 312872873 is about 678.8741990153.

The spelling of 312872873 in words is "three hundred twelve million, eight hundred seventy-two thousand, eight hundred seventy-three".