68392697 has 2 divisors, whose sum is σ = 68392698. Its totient is φ = 68392696.

The previous prime is 68392669. The next prime is 68392699. The reversal of 68392697 is 79629386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67831696 + 561001 = 8236^2 + 749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68392697 is a prime.

It is a super-2 number, since 2×68392697² = 9355122005867618, which contains 22 as substring.

Together with 68392699, 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 (68392699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34196348 + 34196349.

It is an arithmetic number, because the mean of its divisors is an integer number (34196349).

Almost surely, 2^68392697 is an apocalyptic number.

It is an amenable number.

68392697 is a deficient number, since it is larger than the sum of its proper divisors (1).

68392697 is an equidigital number, since it uses as much as digits as its factorization.

68392697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 50.

The square root of 68392697 is about 8269.9877267140. The cubic root of 68392697 is about 408.9497151451.

The spelling of 68392697 in words is "sixty-eight million, three hundred ninety-two thousand, six hundred ninety-seven".