86043173 has 2 divisors, whose sum is σ = 86043174. Its totient is φ = 86043172.

The previous prime is 86043169. The next prime is 86043187. The reversal of 86043173 is 37134068.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78464164 + 7579009 = 8858^2 + 2753^2 .

It is a cyclic number.

It is not a de Polignac number, because 86043173 - 2² = 86043169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86043143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43021586 + 43021587.

It is an arithmetic number, because the mean of its divisors is an integer number (43021587).

Almost surely, 2^86043173 is an apocalyptic number.

It is an amenable number.

86043173 is a deficient number, since it is larger than the sum of its proper divisors (1).

86043173 is an equidigital number, since it uses as much as digits as its factorization.

86043173 is an odious number, because the sum of its binary digits is odd.

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

The square root of 86043173 is about 9275.9459355906. The cubic root of 86043173 is about 441.4743466149.

The spelling of 86043173 in words is "eighty-six million, forty-three thousand, one hundred seventy-three".