86313173 has 2 divisors, whose sum is σ = 86313174. Its totient is φ = 86313172.

The previous prime is 86313121. The next prime is 86313211. The reversal of 86313173 is 37131368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85784644 + 528529 = 9262^2 + 727^2 .

It is a cyclic number.

It is not a de Polignac number, because 86313173 - 2²⁴ = 69535957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86313113) 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, 43156586 + 43156587.

It is an arithmetic number, because the mean of its divisors is an integer number (43156587).

Almost surely, 2^86313173 is an apocalyptic number.

It is an amenable number.

86313173 is a deficient number, since it is larger than the sum of its proper divisors (1).

86313173 is an equidigital number, since it uses as much as digits as its factorization.

86313173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 86313173 is about 9290.4883079416. The cubic root of 86313173 is about 441.9356406636.

The spelling of 86313173 in words is "eighty-six million, three hundred thirteen thousand, one hundred seventy-three".