28795872 has 96 divisors (see below), whose sum is σ = 87720192. Its totient is φ = 8100864.

The previous prime is 28795867. The next prime is 28795873. The reversal of 28795872 is 27859782.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

Its product of digits (564480) is a multiple of the sum of its prime divisors (672).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28795873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48763 + ... + 49349.

It is an arithmetic number, because the mean of its divisors is an integer number (913752).

Almost surely, 2^28795872 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 28795872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43860096).

28795872 is an abundant number, since it is smaller than the sum of its proper divisors (58924320).

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

28795872 is a wasteful number, since it uses less digits than its factorization.

28795872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680 (or 672 counting only the distinct ones).

The product of its digits is 564480, while the sum is 48.

The square root of 28795872 is about 5366.1785285247. The cubic root of 28795872 is about 306.5091272330.

The spelling of 28795872 in words is "twenty-eight million, seven hundred ninety-five thousand, eight hundred seventy-two".