312402379 has 2 divisors, whose sum is σ = 312402380. Its totient is φ = 312402378.

The previous prime is 312402341. The next prime is 312402437. The reversal of 312402379 is 973204213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312402379 - 2¹¹ = 312400331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312402379.

It is not a weakly prime, because it can be changed into another prime (312402479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156201189 + 156201190.

It is an arithmetic number, because the mean of its divisors is an integer number (156201190).

Almost surely, 2^312402379 is an apocalyptic number.

312402379 is a deficient number, since it is larger than the sum of its proper divisors (1).

312402379 is an equidigital number, since it uses as much as digits as its factorization.

312402379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 312402379 is about 17674.9081751504. The cubic root of 312402379 is about 678.5337343462.

The spelling of 312402379 in words is "three hundred twelve million, four hundred two thousand, three hundred seventy-nine".