68035657 has 2 divisors, whose sum is σ = 68035658. Its totient is φ = 68035656.

The previous prime is 68035651. The next prime is 68035661. The reversal of 68035657 is 75653086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51681721 + 16353936 = 7189^2 + 4044^2 .

It is a cyclic number.

It is not a de Polignac number, because 68035657 - 2⁷ = 68035529 is a prime.

It is not a weakly prime, because it can be changed into another prime (68035651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34017828 + 34017829.

It is an arithmetic number, because the mean of its divisors is an integer number (34017829).

Almost surely, 2^68035657 is an apocalyptic number.

It is an amenable number.

68035657 is a deficient number, since it is larger than the sum of its proper divisors (1).

68035657 is an equidigital number, since it uses as much as digits as its factorization.

68035657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 68035657 is about 8248.3729910813. The cubic root of 68035657 is about 408.2368406548.

The spelling of 68035657 in words is "sixty-eight million, thirty-five thousand, six hundred fifty-seven".