722984 has 8 divisors (see below), whose sum is σ = 1355610. Its totient is φ = 361488.

The previous prime is 722983. The next prime is 723029. The reversal of 722984 is 489227.

It can be written as a sum of positive squares in only one way, i.e., 722500 + 484 = 850^2 + 22^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 722984.

It is not an unprimeable number, because it can be changed into a prime (722983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45179 + ... + 45194.

2⁷²²⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

722984 is a deficient number, since it is larger than the sum of its proper divisors (632626).

722984 is a wasteful number, since it uses less digits than its factorization.

722984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90379 (or 90375 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 722984 is about 850.2846582175. The cubic root of 722984 is about 89.7517438229.

The spelling of 722984 in words is "seven hundred twenty-two thousand, nine hundred eighty-four".