313264387 has 2 divisors, whose sum is σ = 313264388. Its totient is φ = 313264386.

The previous prime is 313264373. The next prime is 313264429. The reversal of 313264387 is 783462313.

It is a weak prime.

It is an emirp because it is prime and its reverse (783462313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313264387 is a prime.

It is not a weakly prime, because it can be changed into another prime (313264187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156632193 + 156632194.

It is an arithmetic number, because the mean of its divisors is an integer number (156632194).

Almost surely, 2^313264387 is an apocalyptic number.

313264387 is a deficient number, since it is larger than the sum of its proper divisors (1).

313264387 is an equidigital number, since it uses as much as digits as its factorization.

313264387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 37.

The square root of 313264387 is about 17699.2764541379. The cubic root of 313264387 is about 679.1572511088.

The spelling of 313264387 in words is "three hundred thirteen million, two hundred sixty-four thousand, three hundred eighty-seven".