7979808 has 48 divisors (see below), whose sum is σ = 21180096. Its totient is φ = 2630400.

The previous prime is 7979779. The next prime is 7979813. The reversal of 7979808 is 8089797.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9285 + ... + 10107.

It is an arithmetic number, because the mean of its divisors is an integer number (441252).

Almost surely, 2^7979808 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 7979808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10590048).

7979808 is an abundant number, since it is smaller than the sum of its proper divisors (13200288).

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

7979808 is a wasteful number, since it uses less digits than its factorization.

7979808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 48.

The square root of 7979808 is about 2824.8553945291. The cubic root of 7979808 is about 199.8315915661.

The spelling of 7979808 in words is "seven million, nine hundred seventy-nine thousand, eight hundred eight".