84805648 has 20 divisors (see below), whose sum is σ = 164703868. Its totient is φ = 42301440.

The previous prime is 84805619. The next prime is 84805661. The reversal of 84805648 is 84650848.

It can be written as a sum of positive squares in 2 ways, for example, as 15116544 + 69689104 = 3888^2 + 8348^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808 + ... + 13048.

Almost surely, 2^84805648 is an apocalyptic number.

It is an amenable number.

84805648 is a deficient number, since it is larger than the sum of its proper divisors (79898220).

84805648 is a wasteful number, since it uses less digits than its factorization.

84805648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12682 (or 12676 counting only the distinct ones).

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

The square root of 84805648 is about 9208.9982082743. The cubic root of 84805648 is about 439.3476006418.

The spelling of 84805648 in words is "eighty-four million, eight hundred five thousand, six hundred forty-eight".