79538580 has 216 divisors, whose sum is σ = 281604960. Its totient is φ = 18017280.

The previous prime is 79538573. The next prime is 79538609. The reversal of 79538580 is 8583597.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 572151 + ... + 572289.

Almost surely, 2^79538580 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 79538580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140802480).

79538580 is an abundant number, since it is smaller than the sum of its proper divisors (202066380).

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

79538580 is a wasteful number, since it uses less digits than its factorization.

79538580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 79538580 is about 8918.4404466252. The cubic root of 79538580 is about 430.0569241387.

The spelling of 79538580 in words is "seventy-nine million, five hundred thirty-eight thousand, five hundred eighty".