79937280 has 216 divisors, whose sum is σ = 287934192. Its totient is φ = 21233664.

The previous prime is 79937269. The next prime is 79937287. The reversal of 79937280 is 8273997.

It is a tau number, because it is divible by the number of its divisors (216).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79937287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 310912 + ... + 311168.

Almost surely, 2^79937280 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 79937280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143967096).

79937280 is an abundant number, since it is smaller than the sum of its proper divisors (207996912).

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

79937280 is an equidigital number, since it uses as much as digits as its factorization.

79937280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 79937280 is about 8940.7650679346. The cubic root of 79937280 is about 430.7743034463.

The spelling of 79937280 in words is "seventy-nine million, nine hundred thirty-seven thousand, two hundred eighty".