68939508 has 72 divisors (see below), whose sum is σ = 179347840. Its totient is φ = 20592000.

The previous prime is 68939501. The next prime is 68939527. The reversal of 68939508 is 80593986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68939501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114408 + ... + 115008.

Almost surely, 2^68939508 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 68939508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89673920).

68939508 is an abundant number, since it is smaller than the sum of its proper divisors (110408332).

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

68939508 is a wasteful number, since it uses less digits than its factorization.

68939508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 68939508 is about 8302.9818740017. The cubic root of 68939508 is about 410.0366970921.

The spelling of 68939508 in words is "sixty-eight million, nine hundred thirty-nine thousand, five hundred eight".