68320199 has 4 divisors (see below), whose sum is σ = 68373936. Its totient is φ = 68266464.

The previous prime is 68320193. The next prime is 68320207. The reversal of 68320199 is 99102386.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68320199 - 2⁸ = 68319943 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 (68320193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24914 + ... + 27519.

It is an arithmetic number, because the mean of its divisors is an integer number (17093484).

Almost surely, 2^68320199 is an apocalyptic number.

68320199 is a deficient number, since it is larger than the sum of its proper divisors (53737).

68320199 is a wasteful number, since it uses less digits than its factorization.

68320199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53736.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 68320199 is about 8265.6033657562. The cubic root of 68320199 is about 408.8051650210.

The spelling of 68320199 in words is "sixty-eight million, three hundred twenty thousand, one hundred ninety-nine".