86812043 has 2 divisors, whose sum is σ = 86812044. Its totient is φ = 86812042.

The previous prime is 86812009. The next prime is 86812049. The reversal of 86812043 is 34021868.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86812043 - 2⁸ = 86811787 is a prime.

It is not a weakly prime, because it can be changed into another prime (86812049) 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, 43406021 + 43406022.

It is an arithmetic number, because the mean of its divisors is an integer number (43406022).

Almost surely, 2^86812043 is an apocalyptic number.

86812043 is a deficient number, since it is larger than the sum of its proper divisors (1).

86812043 is an equidigital number, since it uses as much as digits as its factorization.

86812043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 86812043 is about 9317.2980525472. The cubic root of 86812043 is about 442.7854338528.

The spelling of 86812043 in words is "eighty-six million, eight hundred twelve thousand, forty-three".