68691059 has 2 divisors, whose sum is σ = 68691060. Its totient is φ = 68691058.

The previous prime is 68691043. The next prime is 68691089. The reversal of 68691059 is 95019686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68691059 - 2⁴ = 68691043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68691089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34345529 + 34345530.

It is an arithmetic number, because the mean of its divisors is an integer number (34345530).

Almost surely, 2^68691059 is an apocalyptic number.

68691059 is a deficient number, since it is larger than the sum of its proper divisors (1).

68691059 is an equidigital number, since it uses as much as digits as its factorization.

68691059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 68691059 is about 8288.0069377384. The cubic root of 68691059 is about 409.5435312467.

The spelling of 68691059 in words is "sixty-eight million, six hundred ninety-one thousand, fifty-nine".