79285428 has 54 divisors (see below), whose sum is σ = 204976226. Its totient is φ = 25840224.

The previous prime is 79285417. The next prime is 79285441. The reversal of 79285428 is 82458297.

It can be written as a sum of positive squares in only one way, i.e., 76422564 + 2862864 = 8742^2 + 1692^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 79026 + ... + 80022.

Almost surely, 2^79285428 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 79285428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102488113).

79285428 is an abundant number, since it is smaller than the sum of its proper divisors (125690798).

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

79285428 is a wasteful number, since it uses less digits than its factorization.

79285428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101 (or 1049 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 79285428 is about 8904.2365197697. The cubic root of 79285428 is about 429.6001836188.

The spelling of 79285428 in words is "seventy-nine million, two hundred eighty-five thousand, four hundred twenty-eight".