872724 has 12 divisors (see below), whose sum is σ = 2036384. Its totient is φ = 290904.

The previous prime is 872687. The next prime is 872731. The reversal of 872724 is 427278.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 872691 and 872700.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 872724.

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, 36352 + ... + 36375.

2⁸⁷²⁷²⁴ is an apocalyptic number.

It is an amenable number.

872724 is an abundant number, since it is smaller than the sum of its proper divisors (1163660).

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

872724 is a wasteful number, since it uses less digits than its factorization.

872724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72734 (or 72732 counting only the distinct ones).

The product of its digits is 6272, while the sum is 30.

The square root of 872724 is about 934.1969813696. The cubic root of 872724 is about 95.5635570088.

It can be divided in two parts, 872 and 724, that added together give a triangular number (1596 = T₅₆).

The spelling of 872724 in words is "eight hundred seventy-two thousand, seven hundred twenty-four".