722497608 has 48 divisors (see below), whose sum is σ = 2236303680. Its totient is φ = 206427744.

The previous prime is 722497579. The next prime is 722497661. The reversal of 722497608 is 806794227.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 716260 + ... + 717267.

It is an arithmetic number, because the mean of its divisors is an integer number (46589660).

Almost surely, 2^722497608 is an apocalyptic number.

It is an amenable number.

722497608 is an abundant number, since it is smaller than the sum of its proper divisors (1513806072).

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

722497608 is a wasteful number, since it uses less digits than its factorization.

722497608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433546 (or 1433539 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 722497608 is about 26879.3156162876. The cubic root of 722497608 is about 897.3161229230.

The spelling of 722497608 in words is "seven hundred twenty-two million, four hundred ninety-seven thousand, six hundred eight".