722989828 has 12 divisors (see below), whose sum is σ = 1380253392. Its totient is φ = 328631720.

The previous prime is 722989819. The next prime is 722989837. The reversal of 722989828 is 828989227.

722989828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (722989819) and next prime (722989837).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8215750 + ... + 8215837.

It is an arithmetic number, because the mean of its divisors is an integer number (115021116).

Almost surely, 2^722989828 is an apocalyptic number.

It is an amenable number.

722989828 is a deficient number, since it is larger than the sum of its proper divisors (657263564).

722989828 is a wasteful number, since it uses less digits than its factorization.

722989828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16431602 (or 16431600 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 55.

The square root of 722989828 is about 26888.4701684570. The cubic root of 722989828 is about 897.5198498622.

The spelling of 722989828 in words is "seven hundred twenty-two million, nine hundred eighty-nine thousand, eight hundred twenty-eight".