722486648 has 16 divisors (see below), whose sum is σ = 1458867480. Its totient is φ = 333455328.

The previous prime is 722486627. The next prime is 722486663. The reversal of 722486648 is 846684227.

It is a congruent number.

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, 3473390 + ... + 3473597.

Almost surely, 2^722486648 is an apocalyptic number.

It is an amenable number.

722486648 is an abundant number, since it is smaller than the sum of its proper divisors (736380832).

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

722486648 is a wasteful number, since it uses less digits than its factorization.

722486648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6947006 (or 6947002 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 47.

The square root of 722486648 is about 26879.1117412760. Note that the first 3 decimals coincide. The cubic root of 722486648 is about 897.3115855910.

The spelling of 722486648 in words is "seven hundred twenty-two million, four hundred eighty-six thousand, six hundred forty-eight".