79135780 has 48 divisors (see below), whose sum is σ = 175633920. Its totient is φ = 29902208.

The previous prime is 79135739. The next prime is 79135831. The reversal of 79135780 is 8753197.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25809 + ... + 28711.

It is an arithmetic number, because the mean of its divisors is an integer number (3659040).

Almost surely, 2^79135780 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 79135780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87816960).

79135780 is an abundant number, since it is smaller than the sum of its proper divisors (96498140).

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

79135780 is a wasteful number, since it uses less digits than its factorization.

79135780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988 (or 2986 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 79135780 is about 8895.8293598742. The cubic root of 79135780 is about 429.3297291361.

The spelling of 79135780 in words is "seventy-nine million, one hundred thirty-five thousand, seven hundred eighty".