22197983 has 4 divisors (see below), whose sum is σ = 22574280. Its totient is φ = 21821688.

The previous prime is 22197979. The next prime is 22197991. The reversal of 22197983 is 38979122.

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 22197983 - 2² = 22197979 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 22197983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22197943) 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, 188060 + ... + 188177.

It is an arithmetic number, because the mean of its divisors is an integer number (5643570).

Almost surely, 2^22197983 is an apocalyptic number.

22197983 is a deficient number, since it is larger than the sum of its proper divisors (376297).

22197983 is an equidigital number, since it uses as much as digits as its factorization.

22197983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376296.

The product of its digits is 54432, while the sum is 41.

The square root of 22197983 is about 4711.4735486894. The cubic root of 22197983 is about 281.0419638194.

The spelling of 22197983 in words is "twenty-two million, one hundred ninety-seven thousand, nine hundred eighty-three".