68817232 has 80 divisors (see below), whose sum is σ = 153115200. Its totient is φ = 29675520.

The previous prime is 68817227. The next prime is 68817239. The reversal of 68817232 is 23271886.

It is a super-3 number, since 3×68817232³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 68817191 and 68817200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68817239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495019 + ... + 495157.

It is an arithmetic number, because the mean of its divisors is an integer number (1913940).

Almost surely, 2^68817232 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 68817232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76557600).

68817232 is an abundant number, since it is smaller than the sum of its proper divisors (84297968).

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

68817232 is a wasteful number, since it uses less digits than its factorization.

68817232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 278 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 68817232 is about 8295.6152273355. The cubic root of 68817232 is about 409.7941302368.

The spelling of 68817232 in words is "sixty-eight million, eight hundred seventeen thousand, two hundred thirty-two".