86420543 has 4 divisors (see below), whose sum is σ = 94276968. Its totient is φ = 78564120.

The previous prime is 86420527. The next prime is 86420599. The reversal of 86420543 is 34502468.

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 86420543 - 2⁴ = 86420527 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 (86428543) 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, 3928196 + ... + 3928217.

It is an arithmetic number, because the mean of its divisors is an integer number (23569242).

Almost surely, 2^86420543 is an apocalyptic number.

86420543 is a deficient number, since it is larger than the sum of its proper divisors (7856425).

86420543 is a wasteful number, since it uses less digits than its factorization.

86420543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7856424.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 86420543 is about 9296.2650026772. The cubic root of 86420543 is about 442.1188145877.

The spelling of 86420543 in words is "eighty-six million, four hundred twenty thousand, five hundred forty-three".