68880899 has 2 divisors, whose sum is σ = 68880900. Its totient is φ = 68880898.

The previous prime is 68880893. The next prime is 68880913. The reversal of 68880899 is 99808886.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68880899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68880893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34440449 + 34440450.

It is an arithmetic number, because the mean of its divisors is an integer number (34440450).

Almost surely, 2^68880899 is an apocalyptic number.

68880899 is a deficient number, since it is larger than the sum of its proper divisors (1).

68880899 is an equidigital number, since it uses as much as digits as its factorization.

68880899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 56.

The square root of 68880899 is about 8299.4517288794. The cubic root of 68880899 is about 409.9204664288.

The spelling of 68880899 in words is "sixty-eight million, eight hundred eighty thousand, eight hundred ninety-nine".