79805800 has 48 divisors (see below), whose sum is σ = 187934400. Its totient is φ = 31512000.

The previous prime is 79805783. The next prime is 79805801. The reversal of 79805800 is 850897.

It is a super-3 number, since 3×79805800³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79805800.

It is not an unprimeable number, because it can be changed into a prime (79805801) 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 11 ways as a sum of consecutive naturals, for example, 13275 + ... + 18325.

It is an arithmetic number, because the mean of its divisors is an integer number (3915300).

Almost surely, 2^79805800 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 79805800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93967200).

79805800 is an abundant number, since it is smaller than the sum of its proper divisors (108128600).

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

79805800 is a wasteful number, since it uses less digits than its factorization.

79805800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5146 (or 5137 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 79805800 is about 8933.4092036579. The cubic root of 79805800 is about 430.5379961544.

The spelling of 79805800 in words is "seventy-nine million, eight hundred five thousand, eight hundred".