79703988 has 72 divisors (see below), whose sum is σ = 233003232. Its totient is φ = 21018816.

The previous prime is 79703971. The next prime is 79704011. The reversal of 79703988 is 88930797.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 79703988.

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, 2431 + ... + 12857.

It is an arithmetic number, because the mean of its divisors is an integer number (3236156).

Almost surely, 2^79703988 is an apocalyptic number.

79703988 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 79703988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116501616).

79703988 is an abundant number, since it is smaller than the sum of its proper divisors (153299244).

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

79703988 is a wasteful number, since it uses less digits than its factorization.

79703988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10461 (or 10452 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 79703988 is about 8927.7090006339. The cubic root of 79703988 is about 430.3548324077.

The spelling of 79703988 in words is "seventy-nine million, seven hundred three thousand, nine hundred eighty-eight".