869418223 has 2 divisors, whose sum is σ = 869418224. Its totient is φ = 869418222.

The previous prime is 869418203. The next prime is 869418241. The reversal of 869418223 is 322814968.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 869418223 - 2⁵ = 869418191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 869418223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (869418203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434709111 + 434709112.

It is an arithmetic number, because the mean of its divisors is an integer number (434709112).

Almost surely, 2^869418223 is an apocalyptic number.

869418223 is a deficient number, since it is larger than the sum of its proper divisors (1).

869418223 is an equidigital number, since it uses as much as digits as its factorization.

869418223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 43.

The square root of 869418223 is about 29485.8987144703. The cubic root of 869418223 is about 954.4274312438.

The spelling of 869418223 in words is "eight hundred sixty-nine million, four hundred eighteen thousand, two hundred twenty-three".