79428996 has 36 divisors (see below), whose sum is σ = 201071052. Its totient is φ = 26437824.

The previous prime is 79428991. The next prime is 79428997. The reversal of 79428996 is 69982497.

It can be written as a sum of positive squares in 2 ways, for example, as 75168900 + 4260096 = 8670^2 + 2064^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (79428991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34786 + ... + 36998.

It is an arithmetic number, because the mean of its divisors is an integer number (5585307).

Almost surely, 2^79428996 is an apocalyptic number.

It is an amenable number.

79428996 is an abundant number, since it is smaller than the sum of its proper divisors (121642056).

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

79428996 is a wasteful number, since it uses less digits than its factorization.

79428996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220 (or 3215 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 79428996 is about 8912.2946540159. The cubic root of 79428996 is about 429.8593302259.

The spelling of 79428996 in words is "seventy-nine million, four hundred twenty-eight thousand, nine hundred ninety-six".