84521163 has 4 divisors (see below), whose sum is σ = 112694888. Its totient is φ = 56347440.

The previous prime is 84521153. The next prime is 84521179. The reversal of 84521163 is 36112548.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 84521163 - 2⁸ = 84520907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84521163.

It is not an unprimeable number, because it can be changed into a prime (84521153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14086858 + ... + 14086863.

It is an arithmetic number, because the mean of its divisors is an integer number (28173722).

Almost surely, 2^84521163 is an apocalyptic number.

84521163 is a deficient number, since it is larger than the sum of its proper divisors (28173725).

84521163 is a wasteful number, since it uses less digits than its factorization.

84521163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28173724.

The product of its digits is 5760, while the sum is 30.

The square root of 84521163 is about 9193.5391988070. The cubic root of 84521163 is about 438.8557787505.

The spelling of 84521163 in words is "eighty-four million, five hundred twenty-one thousand, one hundred sixty-three".