86166543 has 16 divisors (see below), whose sum is σ = 118202112. Its totient is φ = 55800000.

The previous prime is 86166473. The next prime is 86166547. The reversal of 86166543 is 34566168.

It is not a de Polignac number, because 86166543 - 2¹³ = 86158351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86166547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29478 + ... + 32268.

It is an arithmetic number, because the mean of its divisors is an integer number (7387632).

Almost surely, 2^86166543 is an apocalyptic number.

86166543 is a deficient number, since it is larger than the sum of its proper divisors (32035569).

86166543 is a wasteful number, since it uses less digits than its factorization.

86166543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086.

The product of its digits is 103680, while the sum is 39.

The square root of 86166543 is about 9282.5935492189. The cubic root of 86166543 is about 441.6852433783.

The spelling of 86166543 in words is "eighty-six million, one hundred sixty-six thousand, five hundred forty-three".