8972028 has 72 divisors (see below), whose sum is σ = 25734800. Its totient is φ = 2612736.

The previous prime is 8972023. The next prime is 8972053. The reversal of 8972028 is 8202798.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8971983 and 8972001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8972023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8388 + ... + 9396.

Almost surely, 2^8972028 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 8972028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12867400).

8972028 is an abundant number, since it is smaller than the sum of its proper divisors (16762772).

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

8972028 is a wasteful number, since it uses less digits than its factorization.

8972028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051 (or 1046 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 8972028 is about 2995.3343719859. The cubic root of 8972028 is about 207.7926619803.

The spelling of 8972028 in words is "eight million, nine hundred seventy-two thousand, twenty-eight".