312946427 has 2 divisors, whose sum is σ = 312946428. Its totient is φ = 312946426.

The previous prime is 312946423. The next prime is 312946451. The reversal of 312946427 is 724649213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312946427 - 2² = 312946423 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (312946423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156473213 + 156473214.

It is an arithmetic number, because the mean of its divisors is an integer number (156473214).

Almost surely, 2^312946427 is an apocalyptic number.

312946427 is a deficient number, since it is larger than the sum of its proper divisors (1).

312946427 is an equidigital number, since it uses as much as digits as its factorization.

312946427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 312946427 is about 17690.2918856643. The cubic root of 312946427 is about 678.9273942102.

The spelling of 312946427 in words is "three hundred twelve million, nine hundred forty-six thousand, four hundred twenty-seven".