22638983 has 4 divisors (see below), whose sum is σ = 22648920. Its totient is φ = 22629048.

The previous prime is 22638971. The next prime is 22639031. The reversal of 22638983 is 38983622.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 38983622 = 2 ⋅19491811.

It is a cyclic number.

It is not a de Polignac number, because 22638983 - 2⁶ = 22638919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22638983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22638283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341 + ... + 6737.

It is an arithmetic number, because the mean of its divisors is an integer number (5662230).

Almost surely, 2^22638983 is an apocalyptic number.

22638983 is a deficient number, since it is larger than the sum of its proper divisors (9937).

22638983 is an equidigital number, since it uses as much as digits as its factorization.

22638983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9936.

The product of its digits is 124416, while the sum is 41.

The square root of 22638983 is about 4758.0440309018. The cubic root of 22638983 is about 282.8908959410.

The spelling of 22638983 in words is "twenty-two million, six hundred thirty-eight thousand, nine hundred eighty-three".