28562912 has 48 divisors (see below), whose sum is σ = 66497760. Its totient is φ = 11816448.

The previous prime is 28562899. The next prime is 28562917. The reversal of 28562912 is 21926582.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28562917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4298 + ... + 8694.

It is an arithmetic number, because the mean of its divisors is an integer number (1385370).

Almost surely, 2^28562912 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 28562912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33248880).

28562912 is an abundant number, since it is smaller than the sum of its proper divisors (37934848).

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

28562912 is a wasteful number, since it uses less digits than its factorization.

28562912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4443 (or 4435 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 28562912 is about 5344.4281265632. The cubic root of 28562912 is about 305.6803302983.

The spelling of 28562912 in words is "twenty-eight million, five hundred sixty-two thousand, nine hundred twelve".