85984816 has 20 divisors (see below), whose sum is σ = 166801824. Its totient is φ = 42939200.

The previous prime is 85984783. The next prime is 85984817. The reversal of 85984816 is 61848958.

It is a self number, because there is not a number n which added to its sum of digits gives 85984816.

It is not an unprimeable number, because it can be changed into a prime (85984817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12201 + ... + 17911.

Almost surely, 2^85984816 is an apocalyptic number.

It is an amenable number.

85984816 is a deficient number, since it is larger than the sum of its proper divisors (80817008).

85984816 is a wasteful number, since it uses less digits than its factorization.

85984816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6660 (or 6654 counting only the distinct ones).

The product of its digits is 552960, while the sum is 49.

The square root of 85984816 is about 9272.7997929428. The cubic root of 85984816 is about 441.3745170984.

The spelling of 85984816 in words is "eighty-five million, nine hundred eighty-four thousand, eight hundred sixteen".