84317285 has 16 divisors (see below), whose sum is σ = 109320960. Its totient is φ = 62061120.

The previous prime is 84317213. The next prime is 84317291. The reversal of 84317285 is 58271348.

It is not a de Polignac number, because 84317285 - 2¹² = 84313189 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19556 + ... + 23474.

It is an arithmetic number, because the mean of its divisors is an integer number (6832560).

Almost surely, 2^84317285 is an apocalyptic number.

It is an amenable number.

84317285 is a deficient number, since it is larger than the sum of its proper divisors (25003675).

84317285 is a wasteful number, since it uses less digits than its factorization.

84317285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4268.

The product of its digits is 53760, while the sum is 38.

The square root of 84317285 is about 9182.4443913372. Note that the first 3 decimals coincide. The cubic root of 84317285 is about 438.5026321824.

The spelling of 84317285 in words is "eighty-four million, three hundred seventeen thousand, two hundred eighty-five".