8479728 has 70 divisors (see below), whose sum is σ = 24666824. Its totient is φ = 2822688.

The previous prime is 8479717. The next prime is 8479733. The reversal of 8479728 is 8279748.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 11301 + ... + 12027.

Almost surely, 2^8479728 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 8479728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12333412).

8479728 is an abundant number, since it is smaller than the sum of its proper divisors (16187096).

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

8479728 is an equidigital number, since it uses as much as digits as its factorization.

8479728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753 (or 732 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 8479728 is about 2911.9972527460. The cubic root of 8479728 is about 203.9203841570.

The spelling of 8479728 in words is "eight million, four hundred seventy-nine thousand, seven hundred twenty-eight".