23229217 has 6 divisors (see below), whose sum is σ = 25533074. Its totient is φ = 21117360.

The previous prime is 23229209. The next prime is 23229223. The reversal of 23229217 is 71292232.

It can be written as a sum of positive squares in only one way, i.e., 17842176 + 5387041 = 4224^2 + 2321^2 .

It is not a de Polignac number, because 23229217 - 2³ = 23229209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23229277) 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 5 ways as a sum of consecutive naturals, for example, 95868 + ... + 96109.

Almost surely, 2^23229217 is an apocalyptic number.

It is an amenable number.

23229217 is a deficient number, since it is larger than the sum of its proper divisors (2303857).

23229217 is a wasteful number, since it uses less digits than its factorization.

23229217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191999 (or 191988 counting only the distinct ones).

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

The square root of 23229217 is about 4819.6698019678. The cubic root of 23229217 is about 285.3283053614.

The spelling of 23229217 in words is "twenty-three million, two hundred twenty-nine thousand, two hundred seventeen".