23806217 has 2 divisors, whose sum is σ = 23806218. Its totient is φ = 23806216.

The previous prime is 23806163. The next prime is 23806241. The reversal of 23806217 is 71260832.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14830201 + 8976016 = 3851^2 + 2996^2 .

It is a cyclic number.

It is not a de Polignac number, because 23806217 - 2²⁰ = 22757641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23806217.

It is not a weakly prime, because it can be changed into another prime (23806417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11903108 + 11903109.

It is an arithmetic number, because the mean of its divisors is an integer number (11903109).

Almost surely, 2^23806217 is an apocalyptic number.

It is an amenable number.

23806217 is a deficient number, since it is larger than the sum of its proper divisors (1).

23806217 is an equidigital number, since it uses as much as digits as its factorization.

23806217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 23806217 is about 4879.1615058327. The cubic root of 23806217 is about 287.6714722525.

The spelling of 23806217 in words is "twenty-three million, eight hundred six thousand, two hundred seventeen".