22443197 has 4 divisors (see below), whose sum is σ = 25649376. Its totient is φ = 19237020.

The previous prime is 22443139. The next prime is 22443229. The reversal of 22443197 is 79134422.

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.

It is a cyclic number.

It is not a de Polignac number, because 22443197 - 2⁶ = 22443133 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 (22443107) 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, 1603079 + ... + 1603092.

It is an arithmetic number, because the mean of its divisors is an integer number (6412344).

Almost surely, 2^22443197 is an apocalyptic number.

It is an amenable number.

22443197 is a deficient number, since it is larger than the sum of its proper divisors (3206179).

22443197 is an equidigital number, since it uses as much as digits as its factorization.

22443197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3206178.

The product of its digits is 12096, while the sum is 32.

The square root of 22443197 is about 4737.4251445274. The cubic root of 22443197 is about 282.0730365959.

The spelling of 22443197 in words is "twenty-two million, four hundred forty-three thousand, one hundred ninety-seven".