84489984 has 54 divisors (see below), whose sum is σ = 243612096. Its totient is φ = 28162560.

The previous prime is 84489967. The next prime is 84489997. The reversal of 84489984 is 48998448.

84489984 is a `hidden beast` number, since 84 + 489 + 9 + 84 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 84489984.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16032 + ... + 20639.

Almost surely, 2^84489984 is an apocalyptic number.

It is an amenable number.

84489984 is an abundant number, since it is smaller than the sum of its proper divisors (159122112).

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

84489984 is a wasteful number, since it uses less digits than its factorization.

84489984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36693 (or 36676 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The square root of 84489984 is about 9191.8433407016. The cubic root of 84489984 is about 438.8018089647.

The spelling of 84489984 in words is "eighty-four million, four hundred eighty-nine thousand, nine hundred eighty-four".