22923217 has 2 divisors, whose sum is σ = 22923218. Its totient is φ = 22923216.

The previous prime is 22923209. The next prime is 22923233. The reversal of 22923217 is 71232922.

22923217 is nontrivially palindromic in base 8.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20439441 + 2483776 = 4521^2 + 1576^2 .

It is a cyclic number.

It is not a de Polignac number, because 22923217 - 2³ = 22923209 is a prime.

It is not a weakly prime, because it can be changed into another prime (22923287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11461608 + 11461609.

It is an arithmetic number, because the mean of its divisors is an integer number (11461609).

Almost surely, 2^22923217 is an apocalyptic number.

It is an amenable number.

22923217 is a deficient number, since it is larger than the sum of its proper divisors (1).

22923217 is an equidigital number, since it uses as much as digits as its factorization.

22923217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 22923217 is about 4787.8196499033. The cubic root of 22923217 is about 284.0698804764.

The spelling of 22923217 in words is "twenty-two million, nine hundred twenty-three thousand, two hundred seventeen".