28795500 has 168 divisors, whose sum is σ = 95484480. Its totient is φ = 7581600.

The previous prime is 28795493. The next prime is 28795531. The reversal of 28795500 is 559782.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 364461 + ... + 364539.

It is an arithmetic number, because the mean of its divisors is an integer number (568360).

Almost surely, 2^28795500 is an apocalyptic number.

28795500 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 28795500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47742240).

28795500 is an abundant number, since it is smaller than the sum of its proper divisors (66688980).

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

28795500 is an equidigital number, since it uses as much as digits as its factorization.

28795500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 28795500 is about 5366.1438668750. The cubic root of 28795500 is about 306.5078073460.

The spelling of 28795500 in words is "twenty-eight million, seven hundred ninety-five thousand, five hundred".