722608 has 20 divisors (see below), whose sum is σ = 1474360. Its totient is φ = 342144.

The previous prime is 722599. The next prime is 722611. The reversal of 722608 is 806227.

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, 885 + ... + 1492.

It is an arithmetic number, because the mean of its divisors is an integer number (73718).

2⁷²²⁶⁰⁸ is an apocalyptic number.

It is an amenable number.

722608 is an abundant number, since it is smaller than the sum of its proper divisors (751752).

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

722608 is a wasteful number, since it uses less digits than its factorization.

722608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404 (or 2398 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 722608 is about 850.0635270378. The cubic root of 722608 is about 89.7361821564.

It can be divided in two parts, 722 and 608, that multiplied together give a cube (438976 = 76³).

The spelling of 722608 in words is "seven hundred twenty-two thousand, six hundred eight".