68712697 has 2 divisors, whose sum is σ = 68712698. Its totient is φ = 68712696.

The previous prime is 68712653. The next prime is 68712713. The reversal of 68712697 is 79621786.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63744256 + 4968441 = 7984^2 + 2229^2 .

It is a cyclic number.

It is not a de Polignac number, because 68712697 - 2¹⁹ = 68188409 is a prime.

It is not a weakly prime, because it can be changed into another prime (68712617) 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, 34356348 + 34356349.

It is an arithmetic number, because the mean of its divisors is an integer number (34356349).

Almost surely, 2^68712697 is an apocalyptic number.

It is an amenable number.

68712697 is a deficient number, since it is larger than the sum of its proper divisors (1).

68712697 is an equidigital number, since it uses as much as digits as its factorization.

68712697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 46.

The square root of 68712697 is about 8289.3122151358. The cubic root of 68712697 is about 409.5865294318.

The spelling of 68712697 in words is "sixty-eight million, seven hundred twelve thousand, six hundred ninety-seven".