86259281 has 2 divisors, whose sum is σ = 86259282. Its totient is φ = 86259280.

The previous prime is 86259193. The next prime is 86259293. The reversal of 86259281 is 18295268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63744256 + 22515025 = 7984^2 + 4745^2 .

It is a cyclic number.

It is not a de Polignac number, because 86259281 - 2¹⁸ = 85997137 is a prime.

It is a super-2 number, since 2×86259281² = 14881327117273922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86259181) 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, 43129640 + 43129641.

It is an arithmetic number, because the mean of its divisors is an integer number (43129641).

Almost surely, 2^86259281 is an apocalyptic number.

It is an amenable number.

86259281 is a deficient number, since it is larger than the sum of its proper divisors (1).

86259281 is an equidigital number, since it uses as much as digits as its factorization.

86259281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 41.

The square root of 86259281 is about 9287.5874693055. The cubic root of 86259281 is about 441.8436432958.

The spelling of 86259281 in words is "eighty-six million, two hundred fifty-nine thousand, two hundred eighty-one".