68076731 has 2 divisors, whose sum is σ = 68076732. Its totient is φ = 68076730.

The previous prime is 68076709. The next prime is 68076733. The reversal of 68076731 is 13767086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68076731 - 2⁶ = 68076667 is a prime.

It is a super-2 number, since 2×68076731² = 9268882607292722, which contains 22 as substring.

Together with 68076733, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68076733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34038365 + 34038366.

It is an arithmetic number, because the mean of its divisors is an integer number (34038366).

Almost surely, 2^68076731 is an apocalyptic number.

68076731 is a deficient number, since it is larger than the sum of its proper divisors (1).

68076731 is an equidigital number, since it uses as much as digits as its factorization.

68076731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 68076731 is about 8250.8624397696. The cubic root of 68076731 is about 408.3189767362.

The spelling of 68076731 in words is "sixty-eight million, seventy-six thousand, seven hundred thirty-one".