8289872 has 20 divisors (see below), whose sum is σ = 16454676. Its totient is φ = 4043520.

The previous prime is 8289857. The next prime is 8289877. The reversal of 8289872 is 2789828.

It can be written as a sum of positive squares in 2 ways, for example, as 583696 + 7706176 = 764^2 + 2776^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8289877) 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, 5663 + ... + 6974.

Almost surely, 2^8289872 is an apocalyptic number.

8289872 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

8289872 is a deficient number, since it is larger than the sum of its proper divisors (8164804).

8289872 is a wasteful number, since it uses less digits than its factorization.

8289872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12686 (or 12680 counting only the distinct ones).

The product of its digits is 129024, while the sum is 44.

The square root of 8289872 is about 2879.2137815730. The cubic root of 8289872 is about 202.3869978681.

Subtracting from 8289872 its sum of digits (44), we obtain a palindrome (8289828).

The spelling of 8289872 in words is "eight million, two hundred eighty-nine thousand, eight hundred seventy-two".