872704 has 36 divisors (see below), whose sum is σ = 1994944. Its totient is φ = 373248.

The previous prime is 872687. The next prime is 872731. The reversal of 872704 is 407278.

It is a super-2 number, since 2×872704² = 1523224543232, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a d-powerful number, because it can be written as 8⁵ + 7 + 7⁷ + 2 + 0 + 4⁷ .

It is a nialpdrome in base 16.

It is a congruent number.

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, 1549 + ... + 2035.

2⁸⁷²⁷⁰⁴ 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 872704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997472).

872704 is an abundant number, since it is smaller than the sum of its proper divisors (1122240).

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

872704 is an equidigital number, since it uses as much as digits as its factorization.

872704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 872704 is about 934.1862769277. The cubic root of 872704 is about 95.5628270011.

The spelling of 872704 in words is "eight hundred seventy-two thousand, seven hundred four".