23345217 has 18 divisors (see below), whose sum is σ = 39227058. Its totient is φ = 13339872.

The previous prime is 23345209. The next prime is 23345219. The reversal of 23345217 is 71254332.

It can be written as a sum of positive squares in only one way, i.e., 21538881 + 1806336 = 4641^2 + 1344^2 .

It is not a de Polignac number, because 23345217 - 2³ = 23345209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23345219) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26028 + ... + 26909.

It is an arithmetic number, because the mean of its divisors is an integer number (2179281).

Almost surely, 2^23345217 is an apocalyptic number.

It is an amenable number.

23345217 is a deficient number, since it is larger than the sum of its proper divisors (15881841).

23345217 is a wasteful number, since it uses less digits than its factorization.

23345217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52957 (or 52947 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 23345217 is about 4831.6888351797. The cubic root of 23345217 is about 285.8024660082.

Adding to 23345217 its reverse (71254332), we get a palindrome (94599549).

The spelling of 23345217 in words is "twenty-three million, three hundred forty-five thousand, two hundred seventeen".