86481236 has 12 divisors (see below), whose sum is σ = 159307680. Its totient is φ = 40964760.

The previous prime is 86481209. The next prime is 86481251. The reversal of 86481236 is 63218468.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 86481236.

It is a congruent number.

It is an unprimeable number.

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, 568880 + ... + 569031.

It is an arithmetic number, because the mean of its divisors is an integer number (13275640).

Almost surely, 2^86481236 is an apocalyptic number.

It is an amenable number.

86481236 is a deficient number, since it is larger than the sum of its proper divisors (72826444).

86481236 is a wasteful number, since it uses less digits than its factorization.

86481236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137934 (or 1137932 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 86481236 is about 9299.5288052675. The cubic root of 86481236 is about 442.2222901311. Note that the first 4 decimals are identical.

The spelling of 86481236 in words is "eighty-six million, four hundred eighty-one thousand, two hundred thirty-six".