86817349 has 2 divisors, whose sum is σ = 86817350. Its totient is φ = 86817348.

The previous prime is 86817343. The next prime is 86817371. The reversal of 86817349 is 94371868.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43652449 + 43164900 = 6607^2 + 6570^2 .

It is a cyclic number.

It is not a de Polignac number, because 86817349 - 2¹⁹ = 86293061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86817299 and 86817308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86817343) 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, 43408674 + 43408675.

It is an arithmetic number, because the mean of its divisors is an integer number (43408675).

Almost surely, 2^86817349 is an apocalyptic number.

It is an amenable number.

86817349 is a deficient number, since it is larger than the sum of its proper divisors (1).

86817349 is an equidigital number, since it uses as much as digits as its factorization.

86817349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The square root of 86817349 is about 9317.5827873972. The cubic root of 86817349 is about 442.7944547658.

The spelling of 86817349 in words is "eighty-six million, eight hundred seventeen thousand, three hundred forty-nine".