720938568 has 96 divisors (see below), whose sum is σ = 2110030560. Its totient is φ = 204664320.

The previous prime is 720938557. The next prime is 720938587. The reversal of 720938568 is 865839027.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189808 + ... + 193568.

It is an arithmetic number, because the mean of its divisors is an integer number (21979485).

Almost surely, 2^720938568 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 720938568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1055015280).

720938568 is an abundant number, since it is smaller than the sum of its proper divisors (1389091992).

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

720938568 is a wasteful number, since it uses less digits than its factorization.

720938568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3947 (or 3936 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 720938568 is about 26850.2992162099. The cubic root of 720938568 is about 896.6702341973.

The spelling of 720938568 in words is "seven hundred twenty million, nine hundred thirty-eight thousand, five hundred sixty-eight".