82847305 has 4 divisors (see below), whose sum is σ = 99416772. Its totient is φ = 66277840.

The previous prime is 82847299. The next prime is 82847389. The reversal of 82847305 is 50374828.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23541904 + 59305401 = 4852^2 + 7701^2 .

It is not a de Polignac number, because 82847305 - 2⁹ = 82846793 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 8284726 + ... + 8284735.

It is an arithmetic number, because the mean of its divisors is an integer number (24854193).

Almost surely, 2^82847305 is an apocalyptic number.

It is an amenable number.

82847305 is a deficient number, since it is larger than the sum of its proper divisors (16569467).

82847305 is a wasteful number, since it uses less digits than its factorization.

82847305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16569466.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 82847305 is about 9102.0494944820. The cubic root of 82847305 is about 435.9394064013.

The spelling of 82847305 in words is "eighty-two million, eight hundred forty-seven thousand, three hundred five".