86559144 has 32 divisors (see below), whose sum is σ = 247312320. Its totient is φ = 24731136.

The previous prime is 86559139. The next prime is 86559181. The reversal of 86559144 is 44195568.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 86559096 and 86559105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257449 + ... + 257784.

It is an arithmetic number, because the mean of its divisors is an integer number (7728510).

Almost surely, 2^86559144 is an apocalyptic number.

86559144 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

86559144 is an abundant number, since it is smaller than the sum of its proper divisors (160753176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86559144 is a wasteful number, since it uses less digits than its factorization.

86559144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515249 (or 515245 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 86559144 is about 9303.7166766836. The cubic root of 86559144 is about 442.3550446075.

The spelling of 86559144 in words is "eighty-six million, five hundred fifty-nine thousand, one hundred forty-four".