68088857 has 2 divisors, whose sum is σ = 68088858. Its totient is φ = 68088856.

The previous prime is 68088841. The next prime is 68088869. The reversal of 68088857 is 75888086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45914176 + 22174681 = 6776^2 + 4709^2 .

It is a cyclic number.

It is not a de Polignac number, because 68088857 - 2⁴ = 68088841 is a prime.

It is not a weakly prime, because it can be changed into another prime (68018857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34044428 + 34044429.

It is an arithmetic number, because the mean of its divisors is an integer number (34044429).

Almost surely, 2^68088857 is an apocalyptic number.

It is an amenable number.

68088857 is a deficient number, since it is larger than the sum of its proper divisors (1).

68088857 is an equidigital number, since it uses as much as digits as its factorization.

68088857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 860160, while the sum is 50.

The square root of 68088857 is about 8251.5972393228. The cubic root of 68088857 is about 408.3432189008.

The spelling of 68088857 in words is "sixty-eight million, eighty-eight thousand, eight hundred fifty-seven".