872478 has 32 divisors (see below), whose sum is σ = 1969920. Its totient is φ = 286200.

The previous prime is 872477. The next prime is 872479. The reversal of 872478 is 874278.

It is an interprime number because it is at equal distance from previous prime (872477) and next prime (872479).

It is a super-2 number, since 2×872478² = 1522435720968, which contains 22 as substring.

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 872478.

It is not an unprimeable number, because it can be changed into a prime (872471) 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, 5703 + ... + 5853.

It is an arithmetic number, because the mean of its divisors is an integer number (61560).

2⁸⁷²⁴⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 872478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (984960).

872478 is an abundant number, since it is smaller than the sum of its proper divisors (1097442).

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

872478 is a wasteful number, since it uses less digits than its factorization.

872478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 263 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 872478 is about 934.0653082092. The cubic root of 872478 is about 95.5545771388.

The spelling of 872478 in words is "eight hundred seventy-two thousand, four hundred seventy-eight".