68199599 has 8 divisors (see below), whose sum is σ = 73562832. Its totient is φ = 62853120.

The previous prime is 68199587. The next prime is 68199611. The reversal of 68199599 is 99599186.

It is an interprime number because it is at equal distance from previous prime (68199587) and next prime (68199611).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68199599 - 2²⁰ = 67151023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68190599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5039 + ... + 12719.

It is an arithmetic number, because the mean of its divisors is an integer number (9195354).

Almost surely, 2^68199599 is an apocalyptic number.

68199599 is a deficient number, since it is larger than the sum of its proper divisors (5363233).

68199599 is a wasteful number, since it uses less digits than its factorization.

68199599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8377.

The product of its digits is 1574640, while the sum is 56.

The square root of 68199599 is about 8258.3048502704. The cubic root of 68199599 is about 408.5644800229.

The spelling of 68199599 in words is "sixty-eight million, one hundred ninety-nine thousand, five hundred ninety-nine".