22749983 has 4 divisors (see below), whose sum is σ = 22786008. Its totient is φ = 22713960.

The previous prime is 22749971. The next prime is 22749989. The reversal of 22749983 is 38994722.

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 22749983 - 2¹⁰ = 22748959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22749989) 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, 17048 + ... + 18333.

It is an arithmetic number, because the mean of its divisors is an integer number (5696502).

Almost surely, 2^22749983 is an apocalyptic number.

22749983 is a deficient number, since it is larger than the sum of its proper divisors (36025).

22749983 is an equidigital number, since it uses as much as digits as its factorization.

22749983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36024.

The product of its digits is 217728, while the sum is 44.

The square root of 22749983 is about 4769.6942250002. The cubic root of 22749983 is about 283.3524848262.

It can be divided in two parts, 22749 and 983, that added together give a palindrome (23732).

The spelling of 22749983 in words is "twenty-two million, seven hundred forty-nine thousand, nine hundred eighty-three".