68610677 has 2 divisors, whose sum is σ = 68610678. Its totient is φ = 68610676.

The previous prime is 68610649. The next prime is 68610683. The reversal of 68610677 is 77601686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62504836 + 6105841 = 7906^2 + 2471^2 .

It is a cyclic number.

It is not a de Polignac number, because 68610677 - 2²⁰ = 67562101 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68610697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34305338 + 34305339.

It is an arithmetic number, because the mean of its divisors is an integer number (34305339).

Almost surely, 2^68610677 is an apocalyptic number.

It is an amenable number.

68610677 is a deficient number, since it is larger than the sum of its proper divisors (1).

68610677 is an equidigital number, since it uses as much as digits as its factorization.

68610677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 68610677 is about 8283.1562221173. The cubic root of 68610677 is about 409.3837201647.

The spelling of 68610677 in words is "sixty-eight million, six hundred ten thousand, six hundred seventy-seven".