23613217 has 2 divisors, whose sum is σ = 23613218. Its totient is φ = 23613216.

The previous prime is 23613199. The next prime is 23613259. The reversal of 23613217 is 71231632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21678336 + 1934881 = 4656^2 + 1391^2 .

It is a cyclic number.

It is not a de Polignac number, because 23613217 - 2¹¹ = 23611169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23613191 and 23613200.

It is not a weakly prime, because it can be changed into another prime (23613277) 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 as a sum of consecutive naturals, namely, 11806608 + 11806609.

It is an arithmetic number, because the mean of its divisors is an integer number (11806609).

Almost surely, 2^23613217 is an apocalyptic number.

It is an amenable number.

23613217 is a deficient number, since it is larger than the sum of its proper divisors (1).

23613217 is an equidigital number, since it uses as much as digits as its factorization.

23613217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 25.

The square root of 23613217 is about 4859.3432683851. The cubic root of 23613217 is about 286.8919656350.

Adding to 23613217 its reverse (71231632), we get a palindrome (94844849).

The spelling of 23613217 in words is "twenty-three million, six hundred thirteen thousand, two hundred seventeen".