722872892 has 18 divisors (see below), whose sum is σ = 1471563072. Its totient is φ = 309802584.

The previous prime is 722872853. The next prime is 722872901. The reversal of 722872892 is 298278227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1843868 + ... + 1844259.

It is an arithmetic number, because the mean of its divisors is an integer number (81753504).

Almost surely, 2^722872892 is an apocalyptic number.

It is an amenable number.

722872892 is an abundant number, since it is smaller than the sum of its proper divisors (748690180).

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

722872892 is a wasteful number, since it uses less digits than its factorization.

722872892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688145 (or 3688136 counting only the distinct ones).

The product of its digits is 451584, while the sum is 47.

The square root of 722872892 is about 26886.2956169123. The cubic root of 722872892 is about 897.4714591214.

The spelling of 722872892 in words is "seven hundred twenty-two million, eight hundred seventy-two thousand, eight hundred ninety-two".