84532005 has 20 divisors (see below), whose sum is σ = 151532172. Its totient is φ = 45083520.

The previous prime is 84531989. The next prime is 84532027. The reversal of 84532005 is 50023548.

84532005 is a `hidden beast` number, since 8 + 453 + 200 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15824484 + 68707521 = 3978^2 + 8289^2 .

It is not a de Polignac number, because 84532005 - 2⁴ = 84531989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 84532005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 103956 + ... + 104765.

Almost surely, 2^84532005 is an apocalyptic number.

It is an amenable number.

84532005 is a deficient number, since it is larger than the sum of its proper divisors (67000167).

84532005 is a wasteful number, since it uses less digits than its factorization.

84532005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208738 (or 208729 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 84532005 is about 9194.1288331195. The cubic root of 84532005 is about 438.8745427726.

The spelling of 84532005 in words is "eighty-four million, five hundred thirty-two thousand, five".