312712417 has 2 divisors, whose sum is σ = 312712418. Its totient is φ = 312712416.

The previous prime is 312712397. The next prime is 312712441. The reversal of 312712417 is 714217213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312440976 + 271441 = 17676^2 + 521^2 .

It is a cyclic number.

It is not a de Polignac number, because 312712417 - 2²³ = 304323809 is a prime.

It is not a weakly prime, because it can be changed into another prime (312712457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156356208 + 156356209.

It is an arithmetic number, because the mean of its divisors is an integer number (156356209).

Almost surely, 2^312712417 is an apocalyptic number.

It is an amenable number.

312712417 is a deficient number, since it is larger than the sum of its proper divisors (1).

312712417 is an equidigital number, since it uses as much as digits as its factorization.

312712417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 28.

The square root of 312712417 is about 17683.6765690848. The cubic root of 312712417 is about 678.7581262431.

The spelling of 312712417 in words is "three hundred twelve million, seven hundred twelve thousand, four hundred seventeen".