84085684 has 12 divisors (see below), whose sum is σ = 148309504. Its totient is φ = 41711544.

The previous prime is 84085681. The next prime is 84085691. The reversal of 84085684 is 48658048.

It is a self number, because there is not a number n which added to its sum of digits gives 84085684.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84085681) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 82254 + ... + 83269.

Almost surely, 2^84085684 is an apocalyptic number.

It is an amenable number.

84085684 is a deficient number, since it is larger than the sum of its proper divisors (64223820).

84085684 is a wasteful number, since it uses less digits than its factorization.

84085684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165654 (or 165652 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 43.

The square root of 84085684 is about 9169.8246439068. The cubic root of 84085684 is about 438.1007739879.

The spelling of 84085684 in words is "eighty-four million, eighty-five thousand, six hundred eighty-four".