86181803 has 4 divisors (see below), whose sum is σ = 86237040. Its totient is φ = 86126568.

The previous prime is 86181779. The next prime is 86181817. The reversal of 86181803 is 30818168.

It is a happy number.

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 86181803 - 2²⁰ = 85133227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86181203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25208 + ... + 28421.

It is an arithmetic number, because the mean of its divisors is an integer number (21559260).

Almost surely, 2^86181803 is an apocalyptic number.

86181803 is a deficient number, since it is larger than the sum of its proper divisors (55237).

86181803 is a wasteful number, since it uses less digits than its factorization.

86181803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55236.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 86181803 is about 9283.4154813840. The cubic root of 86181803 is about 441.7113158295.

The spelling of 86181803 in words is "eighty-six million, one hundred eighty-one thousand, eight hundred three".