68912863 has 2 divisors, whose sum is σ = 68912864. Its totient is φ = 68912862.

The previous prime is 68912843. The next prime is 68912873. The reversal of 68912863 is 36821986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68912863 - 2²¹ = 66815711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68912843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34456431 + 34456432.

It is an arithmetic number, because the mean of its divisors is an integer number (34456432).

Almost surely, 2^68912863 is an apocalyptic number.

68912863 is a deficient number, since it is larger than the sum of its proper divisors (1).

68912863 is an equidigital number, since it uses as much as digits as its factorization.

68912863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 43.

The square root of 68912863 is about 8301.3771749030. The cubic root of 68912863 is about 409.9838641280.

The spelling of 68912863 in words is "sixty-eight million, nine hundred twelve thousand, eight hundred sixty-three".