86234543 has 2 divisors, whose sum is σ = 86234544. Its totient is φ = 86234542.

The previous prime is 86234539. The next prime is 86234563. The reversal of 86234543 is 34543268.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86234543 - 2² = 86234539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86234563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43117271 + 43117272.

It is an arithmetic number, because the mean of its divisors is an integer number (43117272).

Almost surely, 2^86234543 is an apocalyptic number.

86234543 is a deficient number, since it is larger than the sum of its proper divisors (1).

86234543 is an equidigital number, since it uses as much as digits as its factorization.

86234543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 35.

The square root of 86234543 is about 9286.2555963101. The cubic root of 86234543 is about 441.8014009888.

The spelling of 86234543 in words is "eighty-six million, two hundred thirty-four thousand, five hundred forty-three".