22989973 has 4 divisors (see below), whose sum is σ = 23001760. Its totient is φ = 22978188.

The previous prime is 22989961. The next prime is 22989977. The reversal of 22989973 is 37998922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22989973 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 (22989977) 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, 2193 + ... + 7126.

It is an arithmetic number, because the mean of its divisors is an integer number (5750440).

Almost surely, 2^22989973 is an apocalyptic number.

It is an amenable number.

22989973 is a deficient number, since it is larger than the sum of its proper divisors (11787).

22989973 is an equidigital number, since it uses as much as digits as its factorization.

22989973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11786.

The product of its digits is 489888, while the sum is 49.

The square root of 22989973 is about 4794.7860223372. The cubic root of 22989973 is about 284.3453652329.

The spelling of 22989973 in words is "twenty-two million, nine hundred eighty-nine thousand, nine hundred seventy-three".