872418 has 16 divisors (see below), whose sum is σ = 1764000. Its totient is φ = 287616.

The previous prime is 872411. The next prime is 872419. The reversal of 872418 is 814278.

It is a super-2 number, since 2×872418² = 1522226333448, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 872418.

It is not an unprimeable number, because it can be changed into a prime (872411) by changing a digit.

872418 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168 + ... + 1331.

It is an arithmetic number, because the mean of its divisors is an integer number (110250).

2⁸⁷²⁴¹⁸ is an apocalyptic number.

872418 is an abundant number, since it is smaller than the sum of its proper divisors (891582).

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

872418 is a wasteful number, since it uses less digits than its factorization.

872418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601.

The product of its digits is 3584, while the sum is 30.

The square root of 872418 is about 934.0331899885. The cubic root of 872418 is about 95.5523866705.

The spelling of 872418 in words is "eight hundred seventy-two thousand, four hundred eighteen".