28800684 has 60 divisors (see below), whose sum is σ = 82145448. Its totient is φ = 8726400.

The previous prime is 28800671. The next prime is 28800697. The reversal of 28800684 is 48600882.

It is an interprime number because it is at equal distance from previous prime (28800671) and next prime (28800697).

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 477 + ... + 7604.

Almost surely, 2^28800684 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 28800684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41072724).

28800684 is an abundant number, since it is smaller than the sum of its proper divisors (53344764).

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

28800684 is a wasteful number, since it uses less digits than its factorization.

28800684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8108 (or 8097 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 28800684 is about 5366.6268735585. The cubic root of 28800684 is about 306.5261995847.

The spelling of 28800684 in words is "twenty-eight million, eight hundred thousand, six hundred eighty-four".