68466731 has 2 divisors, whose sum is σ = 68466732. Its totient is φ = 68466730.

The previous prime is 68466719. The next prime is 68466737. The reversal of 68466731 is 13766486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68466731 - 2¹⁰ = 68465707 is a prime.

It is a super-2 number, since 2×68466731² = 9375386507652722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68466737) 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, 34233365 + 34233366.

It is an arithmetic number, because the mean of its divisors is an integer number (34233366).

Almost surely, 2^68466731 is an apocalyptic number.

68466731 is a deficient number, since it is larger than the sum of its proper divisors (1).

68466731 is an equidigital number, since it uses as much as digits as its factorization.

68466731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 68466731 is about 8274.4625807360. The cubic root of 68466731 is about 409.0972224405.

The spelling of 68466731 in words is "sixty-eight million, four hundred sixty-six thousand, seven hundred thirty-one".