28873600 has 96 divisors (see below), whose sum is σ = 81579600. Its totient is φ = 9891840.

The previous prime is 28873591. The next prime is 28873601. The reversal of 28873600 is 637882.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28873601) 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, 21756 + ... + 23044.

Almost surely, 2^28873600 is an apocalyptic number.

28873600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28873600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40789800).

28873600 is an abundant number, since it is smaller than the sum of its proper divisors (52706000).

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

28873600 is a wasteful number, since it uses less digits than its factorization.

28873600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1303 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 28873600 is about 5373.4160456827. The cubic root of 28873600 is about 306.7846636869.

The spelling of 28873600 in words is "twenty-eight million, eight hundred seventy-three thousand, six hundred".