722652 has 36 divisors (see below), whose sum is σ = 1963080. Its totient is φ = 206304.

The previous prime is 722639. The next prime is 722663. The reversal of 722652 is 256227.

722652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

722652 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27 + ... + 1202.

It is an arithmetic number, because the mean of its divisors is an integer number (54530).

2⁷²²⁶⁵² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (981540).

722652 is an abundant number, since it is smaller than the sum of its proper divisors (1240428).

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

722652 is a wasteful number, since it uses less digits than its factorization.

722652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250 (or 1241 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 722652 is about 850.0894070626. The cubic root of 722652 is about 89.7380034813.

Adding to 722652 its reverse (256227), we get a palindrome (978879).

The spelling of 722652 in words is "seven hundred twenty-two thousand, six hundred fifty-two".