22985539 has 4 divisors (see below), whose sum is σ = 23727040. Its totient is φ = 22244040.

The previous prime is 22985527. The next prime is 22985549. The reversal of 22985539 is 93558922.

It is a happy number.

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 22985539 - 2⁵ = 22985507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22985495 and 22985504.

It is not an unprimeable number, because it can be changed into a prime (22985509) 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, 370704 + ... + 370765.

It is an arithmetic number, because the mean of its divisors is an integer number (5931760).

Almost surely, 2^22985539 is an apocalyptic number.

22985539 is a deficient number, since it is larger than the sum of its proper divisors (741501).

22985539 is an equidigital number, since it uses as much as digits as its factorization.

22985539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741500.

The product of its digits is 194400, while the sum is 43.

The square root of 22985539 is about 4794.3236227856. The cubic root of 22985539 is about 284.3270838078.

The spelling of 22985539 in words is "twenty-two million, nine hundred eighty-five thousand, five hundred thirty-nine".