8423872 has 28 divisors (see below), whose sum is σ = 17110456. Its totient is φ = 4112640.

The previous prime is 8423867. The next prime is 8423879. The reversal of 8423872 is 2783248.

It is a d-powerful number, because it can be written as 8 + 4⁷ + 2¹¹ + 3² + 8 + 7⁵ + 2²³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8423879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222 + ... + 4282.

Almost surely, 2^8423872 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 8423872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8555228).

8423872 is an abundant number, since it is smaller than the sum of its proper divisors (8686584).

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

8423872 is a wasteful number, since it uses less digits than its factorization.

8423872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3116 (or 3106 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 8423872 is about 2902.3907386842. The cubic root of 8423872 is about 203.4716560081.

The spelling of 8423872 in words is "eight million, four hundred twenty-three thousand, eight hundred seventy-two".