22904197 has 2 divisors, whose sum is σ = 22904198. Its totient is φ = 22904196.

The previous prime is 22904191. The next prime is 22904227. The reversal of 22904197 is 79140922.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12348196 + 10556001 = 3514^2 + 3249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22904197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22904191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11452098 + 11452099.

It is an arithmetic number, because the mean of its divisors is an integer number (11452099).

Almost surely, 2^22904197 is an apocalyptic number.

It is an amenable number.

22904197 is a deficient number, since it is larger than the sum of its proper divisors (1).

22904197 is an equidigital number, since it uses as much as digits as its factorization.

22904197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 22904197 is about 4785.8329473562. The cubic root of 22904197 is about 283.9912919700.

The spelling of 22904197 in words is "twenty-two million, nine hundred four thousand, one hundred ninety-seven".