84513845 has 16 divisors (see below), whose sum is σ = 113968512. Its totient is φ = 59695680.

The previous prime is 84513839. The next prime is 84513887. The reversal of 84513845 is 54831548.

It is not a de Polignac number, because 84513845 - 2⁴ = 84513829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84513799 and 84513808.

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, 26771 + ... + 29760.

It is an arithmetic number, because the mean of its divisors is an integer number (7123032).

Almost surely, 2^84513845 is an apocalyptic number.

It is an amenable number.

84513845 is a deficient number, since it is larger than the sum of its proper divisors (29454667).

84513845 is a wasteful number, since it uses less digits than its factorization.

84513845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56572.

The product of its digits is 76800, while the sum is 38.

The square root of 84513845 is about 9193.1411933028. The cubic root of 84513845 is about 438.8431127342.

It can be divided in two parts, 84513 and 845, that added together give a palindrome (85358).

The spelling of 84513845 in words is "eighty-four million, five hundred thirteen thousand, eight hundred forty-five".