79109504 has 32 divisors (see below), whose sum is σ = 158683440. Its totient is φ = 39283200.

The previous prime is 79109467. The next prime is 79109509. The reversal of 79109504 is 40590197.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79109509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17282 + ... + 21374.

Almost surely, 2^79109504 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 79109504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79341720).

79109504 is an abundant number, since it is smaller than the sum of its proper divisors (79573936).

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

79109504 is a wasteful number, since it uses less digits than its factorization.

79109504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4258 (or 4246 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 79109504 is about 8894.3523654058. The cubic root of 79109504 is about 429.2822061035.

The spelling of 79109504 in words is "seventy-nine million, one hundred nine thousand, five hundred four".