84471992 has 32 divisors (see below), whose sum is σ = 175374720. Its totient is φ = 37820640.

The previous prime is 84471991. The next prime is 84472001. The reversal of 84471992 is 29917448.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84471991) 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 7 ways as a sum of consecutive naturals, for example, 1268 + ... + 13059.

It is an arithmetic number, because the mean of its divisors is an integer number (5480460).

Almost surely, 2^84471992 is an apocalyptic number.

It is an amenable number.

84471992 is an abundant number, since it is smaller than the sum of its proper divisors (90902728).

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

84471992 is a wasteful number, since it uses less digits than its factorization.

84471992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14411 (or 14407 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 84471992 is about 9190.8645948028. The cubic root of 84471992 is about 438.7706593844.

The spelling of 84471992 in words is "eighty-four million, four hundred seventy-one thousand, nine hundred ninety-two".