872423 has 16 divisors (see below), whose sum is σ = 1012320. Its totient is φ = 746496.

The previous prime is 872419. The next prime is 872429. The reversal of 872423 is 324278.

It is a cyclic number.

It is not a de Polignac number, because 872423 - 2² = 872419 is a prime.

It is a super-2 number, since 2×872423² = 1522243781858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 872392 and 872401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11915 + ... + 11987.

It is an arithmetic number, because the mean of its divisors is an integer number (63270).

2⁸⁷²⁴²³ is an apocalyptic number.

872423 is a deficient number, since it is larger than the sum of its proper divisors (139897).

872423 is a wasteful number, since it uses less digits than its factorization.

872423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146.

The product of its digits is 2688, while the sum is 26.

The square root of 872423 is about 934.0358665490. The cubic root of 872423 is about 95.5525692134.

It can be divided in two parts, 87242 and 3, that multiplied together give a triangular number (261726 = T₇₂₃).

The spelling of 872423 in words is "eight hundred seventy-two thousand, four hundred twenty-three".