68623199 has 2 divisors, whose sum is σ = 68623200. Its totient is φ = 68623198.

The previous prime is 68623157. The next prime is 68623201. The reversal of 68623199 is 99132686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68623199 - 2²⁰ = 67574623 is a prime.

It is a Sophie Germain prime.

Together with 68623201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68623129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34311599 + 34311600.

It is an arithmetic number, because the mean of its divisors is an integer number (34311600).

Almost surely, 2^68623199 is an apocalyptic number.

68623199 is a deficient number, since it is larger than the sum of its proper divisors (1).

68623199 is an equidigital number, since it uses as much as digits as its factorization.

68623199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 44.

The square root of 68623199 is about 8283.9120589248. The cubic root of 68623199 is about 409.4086239228.

The spelling of 68623199 in words is "sixty-eight million, six hundred twenty-three thousand, one hundred ninety-nine".