79881048 has 96 divisors (see below), whose sum is σ = 240589440. Its totient is φ = 23777280.

The previous prime is 79881031. The next prime is 79881071. The reversal of 79881048 is 84018897.

It is a junction number, because it is equal to n+sod(n) for n = 79880994 and 79881012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27640 + ... + 30392.

It is an arithmetic number, because the mean of its divisors is an integer number (2506140).

Almost surely, 2^79881048 is an apocalyptic number.

79881048 is a gapful number since it is divisible by the number (78) 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 79881048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120294720).

79881048 is an abundant number, since it is smaller than the sum of its proper divisors (160708392).

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

79881048 is a wasteful number, since it uses less digits than its factorization.

79881048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809 (or 2802 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 79881048 is about 8937.6198173787. The cubic root of 79881048 is about 430.6732701411.

The spelling of 79881048 in words is "seventy-nine million, eight hundred eighty-one thousand, forty-eight".