23117869 has 2 divisors, whose sum is σ = 23117870. Its totient is φ = 23117868.

The previous prime is 23117833. The next prime is 23117903. The reversal of 23117869 is 96871132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22915369 + 202500 = 4787^2 + 450^2 .

It is a cyclic number.

It is not a de Polignac number, because 23117869 - 2¹¹ = 23115821 is a prime.

It is a super-2 number, since 2×23117869² = 1068871734202322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23117819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11558934 + 11558935.

It is an arithmetic number, because the mean of its divisors is an integer number (11558935).

Almost surely, 2^23117869 is an apocalyptic number.

It is an amenable number.

23117869 is a deficient number, since it is larger than the sum of its proper divisors (1).

23117869 is an equidigital number, since it uses as much as digits as its factorization.

23117869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 23117869 is about 4808.1045121753. The cubic root of 23117869 is about 284.8716730158.

The spelling of 23117869 in words is "twenty-three million, one hundred seventeen thousand, eight hundred sixty-nine".