313387 has 2 divisors, whose sum is σ = 313388. Its totient is φ = 313386.

The previous prime is 313381. The next prime is 313399. The reversal of 313387 is 783313.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313387 is a prime.

It is a super-2 number, since 2×313387² = 196422823538, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 313387.

It is not a weakly prime, because it can be changed into another prime (313381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156693 + 156694.

It is an arithmetic number, because the mean of its divisors is an integer number (156694).

2³¹³³⁸⁷ is an apocalyptic number.

313387 is a deficient number, since it is larger than the sum of its proper divisors (1).

313387 is an equidigital number, since it uses as much as digits as its factorization.

313387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 25.

The square root of 313387 is about 559.8097891248. The cubic root of 313387 is about 67.9245847887.

The spelling of 313387 in words is "three hundred thirteen thousand, three hundred eighty-seven".