79840008 has 48 divisors (see below), whose sum is σ = 217591920. Its totient is φ = 26446176.

The previous prime is 79840003. The next prime is 79840049. The reversal of 79840008 is 80004897.

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

It is not an unprimeable number, because it can be changed into a prime (79840003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8335 + ... + 15137.

It is an arithmetic number, because the mean of its divisors is an integer number (4533165).

Almost surely, 2^79840008 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 79840008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108795960).

79840008 is an abundant number, since it is smaller than the sum of its proper divisors (137751912).

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

79840008 is a wasteful number, since it uses less digits than its factorization.

79840008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6978 (or 6971 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 79840008 is about 8935.3236091369. The cubic root of 79840008 is about 430.5995027114.

The spelling of 79840008 in words is "seventy-nine million, eight hundred forty thousand, eight".