8523539 has 4 divisors (see below), whose sum is σ = 8650824. Its totient is φ = 8396256.

The previous prime is 8523527. The next prime is 8523587. The reversal of 8523539 is 9353258.

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

It is a cyclic number.

It is not a de Polignac number, because 8523539 - 2⁴ = 8523523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8523499 and 8523508.

It is not an unprimeable number, because it can be changed into a prime (8523509) 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, 63542 + ... + 63675.

It is an arithmetic number, because the mean of its divisors is an integer number (2162706).

Almost surely, 2^8523539 is an apocalyptic number.

8523539 is a deficient number, since it is larger than the sum of its proper divisors (127285).

8523539 is a wasteful number, since it uses less digits than its factorization.

8523539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127284.

The product of its digits is 32400, while the sum is 35.

The square root of 8523539 is about 2919.5100616371. The cubic root of 8523539 is about 204.2709698530.

The spelling of 8523539 in words is "eight million, five hundred twenty-three thousand, five hundred thirty-nine".