68712504 has 128 divisors (see below), whose sum is σ = 212544000. Its totient is φ = 18439680.

The previous prime is 68712503. The next prime is 68712517. The reversal of 68712504 is 40521786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68712503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139699 + ... + 140189.

It is an arithmetic number, because the mean of its divisors is an integer number (1660500).

Almost surely, 2^68712504 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 68712504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106272000).

68712504 is an abundant number, since it is smaller than the sum of its proper divisors (143831496).

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

68712504 is a wasteful number, since it uses less digits than its factorization.

68712504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 68712504 is about 8289.3005736310. The cubic root of 68712504 is about 409.5861459497.

The spelling of 68712504 in words is "sixty-eight million, seven hundred twelve thousand, five hundred four".