8664539 has 8 divisors (see below), whose sum is σ = 9419760. Its totient is φ = 7922016.

The previous prime is 8664529. The next prime is 8664547. The reversal of 8664539 is 9354668.

8664539 = 85² + 86² + ... + 298².

8664539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8664539 - 2²⁰ = 7615963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8664496 and 8664505.

It is not an unprimeable number, because it can be changed into a prime (8664529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1724 + ... + 4505.

It is an arithmetic number, because the mean of its divisors is an integer number (1177470).

Almost surely, 2^8664539 is an apocalyptic number.

8664539 is a deficient number, since it is larger than the sum of its proper divisors (755221).

8664539 is a wasteful number, since it uses less digits than its factorization.

8664539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6349.

The product of its digits is 155520, while the sum is 41.

The square root of 8664539 is about 2943.5589003789. The cubic root of 8664539 is about 205.3911943275.

The spelling of 8664539 in words is "eight million, six hundred sixty-four thousand, five hundred thirty-nine".