28795800 has 96 divisors (see below), whose sum is σ = 97404480. Its totient is φ = 6979200.

The previous prime is 28795787. The next prime is 28795831. The reversal of 28795800 is 859782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4419 + ... + 8781.

It is an arithmetic number, because the mean of its divisors is an integer number (1014630).

Almost surely, 2^28795800 is an apocalyptic number.

28795800 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 28795800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48702240).

28795800 is an abundant number, since it is smaller than the sum of its proper divisors (68608680).

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

28795800 is a wasteful number, since it uses less digits than its factorization.

28795800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393 (or 4384 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 28795800 is about 5366.1718198358. The cubic root of 28795800 is about 306.5088717718.

The spelling of 28795800 in words is "twenty-eight million, seven hundred ninety-five thousand, eight hundred".