722718772 has 12 divisors (see below), whose sum is σ = 1266013476. Its totient is φ = 361000640.

The previous prime is 722718757. The next prime is 722718797. The reversal of 722718772 is 277817227.

It can be written as a sum of positive squares in 2 ways, for example, as 25441936 + 697276836 = 5044^2 + 26406^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85129 + ... + 93232.

It is an arithmetic number, because the mean of its divisors is an integer number (105501123).

Almost surely, 2^722718772 is an apocalyptic number.

It is an amenable number.

722718772 is a deficient number, since it is larger than the sum of its proper divisors (543294704).

722718772 is a wasteful number, since it uses less digits than its factorization.

722718772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179378 (or 179376 counting only the distinct ones).

The product of its digits is 153664, while the sum is 43.

The square root of 722718772 is about 26883.4293199361. The cubic root of 722718772 is about 897.4076728348.

The spelling of 722718772 in words is "seven hundred twenty-two million, seven hundred eighteen thousand, seven hundred seventy-two".