22916197 has 2 divisors, whose sum is σ = 22916198. Its totient is φ = 22916196.

The previous prime is 22916189. The next prime is 22916203. The reversal of 22916197 is 79161922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16760836 + 6155361 = 4094^2 + 2481^2 .

It is a cyclic number.

It is not a de Polignac number, because 22916197 - 2³ = 22916189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22916107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11458098 + 11458099.

It is an arithmetic number, because the mean of its divisors is an integer number (11458099).

Almost surely, 2^22916197 is an apocalyptic number.

It is an amenable number.

22916197 is a deficient number, since it is larger than the sum of its proper divisors (1).

22916197 is an equidigital number, since it uses as much as digits as its factorization.

22916197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 37.

The square root of 22916197 is about 4787.0864834469. The cubic root of 22916197 is about 284.0408796870.

The spelling of 22916197 in words is "twenty-two million, nine hundred sixteen thousand, one hundred ninety-seven".