22641197 has 2 divisors, whose sum is σ = 22641198. Its totient is φ = 22641196.

The previous prime is 22641181. The next prime is 22641211. The reversal of 22641197 is 79114622.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15570916 + 7070281 = 3946^2 + 2659^2 .

It is a cyclic number.

It is not a de Polignac number, because 22641197 - 2⁴ = 22641181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22641107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11320598 + 11320599.

It is an arithmetic number, because the mean of its divisors is an integer number (11320599).

Almost surely, 2^22641197 is an apocalyptic number.

It is an amenable number.

22641197 is a deficient number, since it is larger than the sum of its proper divisors (1).

22641197 is an equidigital number, since it uses as much as digits as its factorization.

22641197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 22641197 is about 4758.2766838426. The cubic root of 22641197 is about 282.9001174982.

The spelling of 22641197 in words is "twenty-two million, six hundred forty-one thousand, one hundred ninety-seven".