86434199 has 2 divisors, whose sum is σ = 86434200. Its totient is φ = 86434198.

The previous prime is 86434189. The next prime is 86434217. The reversal of 86434199 is 99143468.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86434199 - 2⁸ = 86433943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86434129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43217099 + 43217100.

It is an arithmetic number, because the mean of its divisors is an integer number (43217100).

Almost surely, 2^86434199 is an apocalyptic number.

86434199 is a deficient number, since it is larger than the sum of its proper divisors (1).

86434199 is an equidigital number, since it uses as much as digits as its factorization.

86434199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 44.

The square root of 86434199 is about 9296.9994621921. Note that the first 3 decimals coincide. The cubic root of 86434199 is about 442.1421009358.

The spelling of 86434199 in words is "eighty-six million, four hundred thirty-four thousand, one hundred ninety-nine".