86173223 has 2 divisors, whose sum is σ = 86173224. Its totient is φ = 86173222.

The previous prime is 86173207. The next prime is 86173261. The reversal of 86173223 is 32237168.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86173223 - 2⁴ = 86173207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86173223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86173523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43086611 + 43086612.

It is an arithmetic number, because the mean of its divisors is an integer number (43086612).

Almost surely, 2^86173223 is an apocalyptic number.

86173223 is a deficient number, since it is larger than the sum of its proper divisors (1).

86173223 is an equidigital number, since it uses as much as digits as its factorization.

86173223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 86173223 is about 9282.9533554791. The cubic root of 86173223 is about 441.6966568615.

The spelling of 86173223 in words is "eighty-six million, one hundred seventy-three thousand, two hundred twenty-three".