79770528 has 96 divisors (see below), whose sum is σ = 246395520. Its totient is φ = 25021440.

The previous prime is 79770521. The next prime is 79770539. The reversal of 79770528 is 82507797.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (79770521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11973 + ... + 17403.

It is an arithmetic number, because the mean of its divisors is an integer number (2566620).

Almost surely, 2^79770528 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 79770528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123197760).

79770528 is an abundant number, since it is smaller than the sum of its proper divisors (166624992).

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

79770528 is a wasteful number, since it uses less digits than its factorization.

79770528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5467 (or 5453 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The square root of 79770528 is about 8931.4348231401. The cubic root of 79770528 is about 430.4745581002.

The spelling of 79770528 in words is "seventy-nine million, seven hundred seventy thousand, five hundred twenty-eight".