83564163 has 16 divisors (see below), whose sum is σ = 131081760. Its totient is φ = 52432128.

The previous prime is 83564153. The next prime is 83564177. The reversal of 83564163 is 36146538.

83564163 is a `hidden beast` number, since 8 + 3 + 5 + 641 + 6 + 3 = 666.

It is not a de Polignac number, because 83564163 - 2¹² = 83560067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83564113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90570 + ... + 91487.

It is an arithmetic number, because the mean of its divisors is an integer number (8192610).

Almost surely, 2^83564163 is an apocalyptic number.

83564163 is a deficient number, since it is larger than the sum of its proper divisors (47517597).

83564163 is a wasteful number, since it uses less digits than its factorization.

83564163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182083 (or 182077 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 83564163 is about 9141.3436102140. The cubic root of 83564163 is about 437.1931571438.

The spelling of 83564163 in words is "eighty-three million, five hundred sixty-four thousand, one hundred sixty-three".