84576563 has 4 divisors (see below), whose sum is σ = 86639448. Its totient is φ = 82513680.

The previous prime is 84576521. The next prime is 84576599. The reversal of 84576563 is 36567548.

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

It is a cyclic number.

It is not a de Polignac number, because 84576563 - 2²² = 80382259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84576263) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1031381 + ... + 1031462.

It is an arithmetic number, because the mean of its divisors is an integer number (21659862).

Almost surely, 2^84576563 is an apocalyptic number.

84576563 is a deficient number, since it is larger than the sum of its proper divisors (2062885).

84576563 is a wasteful number, since it uses less digits than its factorization.

84576563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062884.

The product of its digits is 604800, while the sum is 44.

The square root of 84576563 is about 9196.5516907154. The cubic root of 84576563 is about 438.9516415271.

The spelling of 84576563 in words is "eighty-four million, five hundred seventy-six thousand, five hundred sixty-three".