68632799 has 2 divisors, whose sum is σ = 68632800. Its totient is φ = 68632798.

The previous prime is 68632777. The next prime is 68632801. The reversal of 68632799 is 99723686.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68632799 is a prime.

It is a super-2 number, since 2×68632799² = 9420922197148802, which contains 22 as substring.

Together with 68632801, 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 (68632099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34316399 + 34316400.

It is an arithmetic number, because the mean of its divisors is an integer number (34316400).

Almost surely, 2^68632799 is an apocalyptic number.

68632799 is a deficient number, since it is larger than the sum of its proper divisors (1).

68632799 is an equidigital number, since it uses as much as digits as its factorization.

68632799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 50.

The square root of 68632799 is about 8284.4914750394. The cubic root of 68632799 is about 409.4277143547.

The spelling of 68632799 in words is "sixty-eight million, six hundred thirty-two thousand, seven hundred ninety-nine".