84540663 has 24 divisors (see below), whose sum is σ = 128325600. Its totient is φ = 53528640.

The previous prime is 84540637. The next prime is 84540697. The reversal of 84540663 is 36604548.

It is not a de Polignac number, because 84540663 - 2¹⁰ = 84539639 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84540613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29473 + ... + 32213.

It is an arithmetic number, because the mean of its divisors is an integer number (5346900).

Almost surely, 2^84540663 is an apocalyptic number.

84540663 is a deficient number, since it is larger than the sum of its proper divisors (43784937).

84540663 is a wasteful number, since it uses less digits than its factorization.

84540663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919 (or 2916 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 84540663 is about 9194.5996650208. The cubic root of 84540663 is about 438.8895258395.

The spelling of 84540663 in words is "eighty-four million, five hundred forty thousand, six hundred sixty-three".