68323992 has 32 divisors (see below), whose sum is σ = 186338880. Its totient is φ = 20704160.

The previous prime is 68323979. The next prime is 68323993. The reversal of 68323992 is 29932386.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68323993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129138 + ... + 129665.

It is an arithmetic number, because the mean of its divisors is an integer number (5823090).

Almost surely, 2^68323992 is an apocalyptic number.

It is an amenable number.

68323992 is an abundant number, since it is smaller than the sum of its proper divisors (118014888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68323992 is a wasteful number, since it uses less digits than its factorization.

68323992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258823 (or 258819 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 68323992 is about 8265.8328074066. The cubic root of 68323992 is about 408.8127302278.

The spelling of 68323992 in words is "sixty-eight million, three hundred twenty-three thousand, nine hundred ninety-two".