84684845 has 16 divisors (see below), whose sum is σ = 118842240. Its totient is φ = 56718144.

The previous prime is 84684793. The next prime is 84684863. The reversal of 84684845 is 54848648.

It is a happy number.

It is not a de Polignac number, because 84684845 - 2²⁶ = 17575981 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 84684845.

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, 26630 + ... + 29639.

It is an arithmetic number, because the mean of its divisors is an integer number (7427640).

Almost surely, 2^84684845 is an apocalyptic number.

It is an amenable number.

84684845 is a deficient number, since it is larger than the sum of its proper divisors (34157395).

84684845 is a wasteful number, since it uses less digits than its factorization.

84684845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56324.

The product of its digits is 983040, while the sum is 47.

The square root of 84684845 is about 9202.4369055158. The cubic root of 84684845 is about 439.1388891924.

The spelling of 84684845 in words is "eighty-four million, six hundred eighty-four thousand, eight hundred forty-five".