15799800 has 96 divisors (see below), whose sum is σ = 51894000. Its totient is φ = 3962880.

The previous prime is 15799757. The next prime is 15799807. The reversal of 15799800 is 899751.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15799807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9426 + ... + 10974.

Almost surely, 2^15799800 is an apocalyptic number.

15799800 is a gapful number since it is divisible by the number (10) 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 15799800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25947000).

15799800 is an abundant number, since it is smaller than the sum of its proper divisors (36094200).

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

15799800 is a wasteful number, since it uses less digits than its factorization.

15799800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 15799800 is about 3974.8962250605. The cubic root of 15799800 is about 250.9288116290.

The spelling of 15799800 in words is "fifteen million, seven hundred ninety-nine thousand, eight hundred".