872554 has 8 divisors (see below), whose sum is σ = 1314180. Its totient is φ = 434496.

The previous prime is 872549. The next prime is 872561. The reversal of 872554 is 455278.

It can be written as a sum of positive squares in 2 ways, for example, as 859329 + 13225 = 927^2 + 115^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×872554² = 1522700965832, which contains 22 as substring.

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, 159 + ... + 1330.

2⁸⁷²⁵⁵⁴ is an apocalyptic number.

872554 is a deficient number, since it is larger than the sum of its proper divisors (441626).

872554 is a wasteful number, since it uses less digits than its factorization.

872554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784.

The product of its digits is 11200, while the sum is 31.

The square root of 872554 is about 934.1059897035. The cubic root of 872554 is about 95.5573515877.

The spelling of 872554 in words is "eight hundred seventy-two thousand, five hundred fifty-four".