86243 has 2 divisors, whose sum is σ = 86244. Its totient is φ = 86242.

The previous prime is 86239. The next prime is 86249. The reversal of 86243 is 34268.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86243 - 2² = 86239 is a prime.

It is a d-powerful number, because it can be written as 8⁵ + 6⁶ + 2 + 4⁴ + 3⁸ .

It is equal to p₈₃₈₄ and since 86243 and 8384 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (86249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43121 + 43122.

It is an arithmetic number, because the mean of its divisors is an integer number (43122).

2⁸⁶²⁴³ is an apocalyptic number.

86243 is a deficient number, since it is larger than the sum of its proper divisors (1).

86243 is an equidigital number, since it uses as much as digits as its factorization.

86243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 23.

The square root of 86243 is about 293.6715852785. The cubic root of 86243 is about 44.1815842968.

The spelling of 86243 in words is "eighty-six thousand, two hundred forty-three".