8504224 has 12 divisors (see below), whose sum is σ = 16742754. Its totient is φ = 4252096.

The previous prime is 8504203. The next prime is 8504231. The reversal of 8504224 is 4224058.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7463824 + 1040400 = 2732^2 + 1020^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132847 + ... + 132910.

Almost surely, 2^8504224 is an apocalyptic number.

It is an amenable number.

8504224 is a deficient number, since it is larger than the sum of its proper divisors (8238530).

8504224 is a wasteful number, since it uses less digits than its factorization.

8504224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265767 (or 265759 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 8504224 is about 2916.2002674714. The cubic root of 8504224 is about 204.1165552057.

The spelling of 8504224 in words is "eight million, five hundred four thousand, two hundred twenty-four".