86983144 has 8 divisors (see below), whose sum is σ = 163093410. Its totient is φ = 43491568.

The previous prime is 86983139. The next prime is 86983147. The reversal of 86983144 is 44138968.

It can be written as a sum of positive squares in only one way, i.e., 85192900 + 1790244 = 9230^2 + 1338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 86983144.

It is not an unprimeable number, because it can be changed into a prime (86983147) 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 as a sum of consecutive naturals, namely, 5436439 + ... + 5436454.

Almost surely, 2^86983144 is an apocalyptic number.

It is an amenable number.

86983144 is a deficient number, since it is larger than the sum of its proper divisors (76110266).

86983144 is a wasteful number, since it uses less digits than its factorization.

86983144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10872899 (or 10872895 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 86983144 is about 9326.4754328739. The cubic root of 86983144 is about 443.0761435629.

The spelling of 86983144 in words is "eighty-six million, nine hundred eighty-three thousand, one hundred forty-four".