68956313 has 2 divisors, whose sum is σ = 68956314. Its totient is φ = 68956312.

The previous prime is 68956297. The next prime is 68956319. The reversal of 68956313 is 31365986.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48553024 + 20403289 = 6968^2 + 4517^2 .

It is a cyclic number.

It is not a de Polignac number, because 68956313 - 2⁴ = 68956297 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68956319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34478156 + 34478157.

It is an arithmetic number, because the mean of its divisors is an integer number (34478157).

Almost surely, 2^68956313 is an apocalyptic number.

It is an amenable number.

68956313 is a deficient number, since it is larger than the sum of its proper divisors (1).

68956313 is an equidigital number, since it uses as much as digits as its factorization.

68956313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 41.

The square root of 68956313 is about 8303.9937981672. The cubic root of 68956313 is about 410.0700118394.

The spelling of 68956313 in words is "sixty-eight million, nine hundred fifty-six thousand, three hundred thirteen".