84831992 has 64 divisors (see below), whose sum is σ = 187729920. Its totient is φ = 35186688.

The previous prime is 84831973. The next prime is 84832001. The reversal of 84831992 is 29913848.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439448 + ... + 439640.

It is an arithmetic number, because the mean of its divisors is an integer number (2933280).

Almost surely, 2^84831992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84831992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93864960).

84831992 is an abundant number, since it is smaller than the sum of its proper divisors (102897928).

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

84831992 is a wasteful number, since it uses less digits than its factorization.

84831992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 416 counting only the distinct ones).

The product of its digits is 124416, while the sum is 44.

The square root of 84831992 is about 9210.4284373747. The cubic root of 84831992 is about 439.3930888658.

The spelling of 84831992 in words is "eighty-four million, eight hundred thirty-one thousand, nine hundred ninety-two".