722783712 has 144 divisors (see below), whose sum is σ = 2323520640. Its totient is φ = 195616512.

The previous prime is 722783707. The next prime is 722783749. The reversal of 722783712 is 217387227.

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 23 ways as a sum of consecutive naturals, for example, 85333 + ... + 93419.

It is an arithmetic number, because the mean of its divisors is an integer number (16135560).

Almost surely, 2^722783712 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 722783712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1161760320).

722783712 is an abundant number, since it is smaller than the sum of its proper divisors (1600736928).

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

722783712 is a wasteful number, since it uses less digits than its factorization.

722783712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8133 (or 8118 counting only the distinct ones).

The product of its digits is 65856, while the sum is 39.

The square root of 722783712 is about 26884.6371000242. The cubic root of 722783712 is about 897.4345509286.

The spelling of 722783712 in words is "seven hundred twenty-two million, seven hundred eighty-three thousand, seven hundred twelve".