68322864 has 80 divisors (see below), whose sum is σ = 188961120. Its totient is φ = 21196800.

The previous prime is 68322833. The next prime is 68322889. The reversal of 68322864 is 46822386.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82002 + ... + 82830.

It is an arithmetic number, because the mean of its divisors is an integer number (2362014).

Almost surely, 2^68322864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68322864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94480560).

68322864 is an abundant number, since it is smaller than the sum of its proper divisors (120638256).

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

68322864 is a wasteful number, since it uses less digits than its factorization.

68322864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958 (or 952 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 68322864 is about 8265.7645744359. The cubic root of 68322864 is about 408.8104804408.

The spelling of 68322864 in words is "sixty-eight million, three hundred twenty-two thousand, eight hundred sixty-four".