722992868 has 12 divisors (see below), whose sum is σ = 1362563580. Its totient is φ = 333688992.

The previous prime is 722992867. The next prime is 722992877. The reversal of 722992868 is 868299227.

It can be written as a sum of positive squares in 2 ways, for example, as 278289124 + 444703744 = 16682^2 + 21088^2 .

It is not an unprimeable number, because it can be changed into a prime (722992867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6951803 + ... + 6951906.

It is an arithmetic number, because the mean of its divisors is an integer number (113546965).

Almost surely, 2^722992868 is an apocalyptic number.

It is an amenable number.

722992868 is a deficient number, since it is larger than the sum of its proper divisors (639570712).

722992868 is a wasteful number, since it uses less digits than its factorization.

722992868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13903726 (or 13903724 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 53.

The square root of 722992868 is about 26888.5266982035. The cubic root of 722992868 is about 897.5211078128.

The spelling of 722992868 in words is "seven hundred twenty-two million, nine hundred ninety-two thousand, eight hundred sixty-eight".