28532896 has 72 divisors (see below), whose sum is σ = 67568256. Its totient is φ = 11813760.

The previous prime is 28532893. The next prime is 28532899. The reversal of 28532896 is 69823582.

It is an interprime number because it is at equal distance from previous prime (28532893) and next prime (28532899).

It is not an unprimeable number, because it can be changed into a prime (28532891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48315 + ... + 48901.

It is an arithmetic number, because the mean of its divisors is an integer number (938448).

Almost surely, 2^28532896 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 28532896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33784128).

28532896 is an abundant number, since it is smaller than the sum of its proper divisors (39035360).

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

28532896 is a wasteful number, since it uses less digits than its factorization.

28532896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 627 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 28532896 is about 5341.6192301586. The cubic root of 28532896 is about 305.5732156747.

The spelling of 28532896 in words is "twenty-eight million, five hundred thirty-two thousand, eight hundred ninety-six".