86423543 has 4 divisors (see below), whose sum is σ = 87640848. Its totient is φ = 85206240.

The previous prime is 86423537. The next prime is 86423569. The reversal of 86423543 is 34532468.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86423543 - 2⁸ = 86423287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86423143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608546 + ... + 608687.

It is an arithmetic number, because the mean of its divisors is an integer number (21910212).

Almost surely, 2^86423543 is an apocalyptic number.

86423543 is a deficient number, since it is larger than the sum of its proper divisors (1217305).

86423543 is a wasteful number, since it uses less digits than its factorization.

86423543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217304.

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

The square root of 86423543 is about 9296.4263564017. The cubic root of 86423543 is about 442.1239304280.

The spelling of 86423543 in words is "eighty-six million, four hundred twenty-three thousand, five hundred forty-three".