22164897 has 4 divisors (see below), whose sum is σ = 29553200. Its totient is φ = 14776596.

The previous prime is 22164869. The next prime is 22164911. The reversal of 22164897 is 79846122.

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 not a de Polignac number, because 22164897 - 2⁶ = 22164833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22164817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3694147 + ... + 3694152.

It is an arithmetic number, because the mean of its divisors is an integer number (7388300).

Almost surely, 2^22164897 is an apocalyptic number.

It is an amenable number.

22164897 is a deficient number, since it is larger than the sum of its proper divisors (7388303).

22164897 is an equidigital number, since it uses as much as digits as its factorization.

22164897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7388302.

The product of its digits is 48384, while the sum is 39.

The square root of 22164897 is about 4707.9610236280. The cubic root of 22164897 is about 280.9022637685.

The spelling of 22164897 in words is "twenty-two million, one hundred sixty-four thousand, eight hundred ninety-seven".