23668217 has 2 divisors, whose sum is σ = 23668218. Its totient is φ = 23668216.

The previous prime is 23668207. The next prime is 23668231. The reversal of 23668217 is 71286632.

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., 18757561 + 4910656 = 4331^2 + 2216^2 .

It is a cyclic number.

It is not a de Polignac number, because 23668217 - 2⁶ = 23668153 is a prime.

It is not a weakly prime, because it can be changed into another prime (23668207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11834108 + 11834109.

It is an arithmetic number, because the mean of its divisors is an integer number (11834109).

Almost surely, 2^23668217 is an apocalyptic number.

It is an amenable number.

23668217 is a deficient number, since it is larger than the sum of its proper divisors (1).

23668217 is an equidigital number, since it uses as much as digits as its factorization.

23668217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 23668217 is about 4864.9991778005. Note that the first 3 decimals coincide. The cubic root of 23668217 is about 287.1145362269.

The spelling of 23668217 in words is "twenty-three million, six hundred sixty-eight thousand, two hundred seventeen".