68013339 has 4 divisors (see below), whose sum is σ = 90684456. Its totient is φ = 45342224.

The previous prime is 68013329. The next prime is 68013343. The reversal of 68013339 is 93331086.

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 68013339 - 2⁸ = 68013083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68013329) 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 in 3 ways as a sum of consecutive naturals, for example, 11335554 + ... + 11335559.

It is an arithmetic number, because the mean of its divisors is an integer number (22671114).

Almost surely, 2^68013339 is an apocalyptic number.

68013339 is a deficient number, since it is larger than the sum of its proper divisors (22671117).

68013339 is a wasteful number, since it uses less digits than its factorization.

68013339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22671116.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 68013339 is about 8247.0200072511. The cubic root of 68013339 is about 408.1921972691.

The spelling of 68013339 in words is "sixty-eight million, thirteen thousand, three hundred thirty-nine".