8564144 has 20 divisors (see below), whose sum is σ = 16718424. Its totient is φ = 4249728.

The previous prime is 8564123. The next prime is 8564147. The reversal of 8564144 is 4414658.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8564144.

It is not an unprimeable number, because it can be changed into a prime (8564147) 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, 239 + ... + 4145.

Almost surely, 2^8564144 is an apocalyptic number.

It is an amenable number.

8564144 is a deficient number, since it is larger than the sum of its proper divisors (8154280).

8564144 is a wasteful number, since it uses less digits than its factorization.

8564144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052 (or 4046 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 8564144 is about 2926.4558769952. The cubic root of 8564144 is about 204.5948293166.

The spelling of 8564144 in words is "eight million, five hundred sixty-four thousand, one hundred forty-four".