722972 has 12 divisors (see below), whose sum is σ = 1286376. Its totient is φ = 355440.

The previous prime is 722971. The next prime is 722977. The reversal of 722972 is 279227.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1238 + ... + 1725.

It is an arithmetic number, because the mean of its divisors is an integer number (107198).

2⁷²²⁹⁷² is an apocalyptic number.

It is an amenable number.

722972 is a deficient number, since it is larger than the sum of its proper divisors (563404).

722972 is a wasteful number, since it uses less digits than its factorization.

722972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028 (or 3026 counting only the distinct ones).

The product of its digits is 3528, while the sum is 29.

The square root of 722972 is about 850.2776017278. The cubic root of 722972 is about 89.7512472573.

The spelling of 722972 in words is "seven hundred twenty-two thousand, nine hundred seventy-two".