86436223 has 2 divisors, whose sum is σ = 86436224. Its totient is φ = 86436222.

The previous prime is 86436197. The next prime is 86436227. The reversal of 86436223 is 32263468.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86436223 - 2²¹ = 84339071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86436227) 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, 43218111 + 43218112.

It is an arithmetic number, because the mean of its divisors is an integer number (43218112).

Almost surely, 2^86436223 is an apocalyptic number.

86436223 is a deficient number, since it is larger than the sum of its proper divisors (1).

86436223 is an equidigital number, since it uses as much as digits as its factorization.

86436223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 34.

The square root of 86436223 is about 9297.1083138791. The cubic root of 86436223 is about 442.1455520721.

The spelling of 86436223 in words is "eighty-six million, four hundred thirty-six thousand, two hundred twenty-three".