84831872 has 32 divisors (see below), whose sum is σ = 174460800. Its totient is φ = 41045760.

The previous prime is 84831871. The next prime is 84831881. The reversal of 84831872 is 27813848.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (84831871) 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, 6722 + ... + 14657.

It is an arithmetic number, because the mean of its divisors is an integer number (5451900).

Almost surely, 2^84831872 is an apocalyptic number.

It is an amenable number.

84831872 is an abundant number, since it is smaller than the sum of its proper divisors (89628928).

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

84831872 is a wasteful number, since it uses less digits than its factorization.

84831872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21424 (or 21412 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 84831872 is about 9210.4219230174. The cubic root of 84831872 is about 439.3928816830.

The spelling of 84831872 in words is "eighty-four million, eight hundred thirty-one thousand, eight hundred seventy-two".