68264731 has 2 divisors, whose sum is σ = 68264732. Its totient is φ = 68264730.

The previous prime is 68264723. The next prime is 68264743. The reversal of 68264731 is 13746286.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68264731 - 2³ = 68264723 is a prime.

It is a super-2 number, since 2×68264731² = 9320146997004722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68264431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34132365 + 34132366.

It is an arithmetic number, because the mean of its divisors is an integer number (34132366).

Almost surely, 2^68264731 is an apocalyptic number.

68264731 is a deficient number, since it is larger than the sum of its proper divisors (1).

68264731 is an equidigital number, since it uses as much as digits as its factorization.

68264731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 37.

The square root of 68264731 is about 8262.2473335044. The cubic root of 68264731 is about 408.6945010952.

The spelling of 68264731 in words is "sixty-eight million, two hundred sixty-four thousand, seven hundred thirty-one".