8645018 has 4 divisors (see below), whose sum is σ = 12967530. Its totient is φ = 4322508.

The previous prime is 8645011. The next prime is 8645023. The reversal of 8645018 is 8105468.

8645018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8334769 + 310249 = 2887^2 + 557^2 .

It is not an unprimeable number, because it can be changed into a prime (8645011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2161253 + ... + 2161256.

Almost surely, 2^8645018 is an apocalyptic number.

8645018 is a deficient number, since it is larger than the sum of its proper divisors (4322512).

8645018 is a wasteful number, since it uses less digits than its factorization.

8645018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4322511.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 8645018 is about 2940.2411465728. The cubic root of 8645018 is about 205.2368311876.

It can be divided in two parts, 86450 and 18, that added together give a palindrome (86468).

The spelling of 8645018 in words is "eight million, six hundred forty-five thousand, eighteen".