84480845 has 16 divisors (see below), whose sum is σ = 102608688. Its totient is φ = 66769920.

The previous prime is 84480839. The next prime is 84480881. The reversal of 84480845 is 54808448.

It can be written as a sum of positive squares in 8 ways, for example, as 35844169 + 48636676 = 5987^2 + 6974^2 .

It is not a de Polignac number, because 84480845 - 2⁸ = 84480589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 250517 + ... + 250853.

It is an arithmetic number, because the mean of its divisors is an integer number (6413043).

Almost surely, 2^84480845 is an apocalyptic number.

It is an amenable number.

84480845 is a deficient number, since it is larger than the sum of its proper divisors (18127843).

84480845 is a wasteful number, since it uses less digits than its factorization.

84480845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800.

The product of its (nonzero) digits is 163840, while the sum is 41.

The square root of 84480845 is about 9191.3462017269. The cubic root of 84480845 is about 438.7859871511.

The spelling of 84480845 in words is "eighty-four million, four hundred eighty thousand, eight hundred forty-five".