86444317 has 2 divisors, whose sum is σ = 86444318. Its totient is φ = 86444316.

The previous prime is 86444299. The next prime is 86444339. The reversal of 86444317 is 71344468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50851161 + 35593156 = 7131^2 + 5966^2 .

It is a cyclic number.

It is not a de Polignac number, because 86444317 - 2²³ = 78055709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86444717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43222158 + 43222159.

It is an arithmetic number, because the mean of its divisors is an integer number (43222159).

Almost surely, 2^86444317 is an apocalyptic number.

It is an amenable number.

86444317 is a deficient number, since it is larger than the sum of its proper divisors (1).

86444317 is an equidigital number, since it uses as much as digits as its factorization.

86444317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 37.

The square root of 86444317 is about 9297.5436003280. The cubic root of 86444317 is about 442.1593526690.

The spelling of 86444317 in words is "eighty-six million, four hundred forty-four thousand, three hundred seventeen".