82318845 has 64 divisors (see below), whose sum is σ = 161243136. Its totient is φ = 35005440.

The previous prime is 82318843. The next prime is 82318853. The reversal of 82318845 is 54881328.

It is not a de Polignac number, because 82318845 - 2¹ = 82318843 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82318843) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 190780 + ... + 191210.

It is an arithmetic number, because the mean of its divisors is an integer number (2519424).

Almost surely, 2^82318845 is an apocalyptic number.

82318845 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

82318845 is a deficient number, since it is larger than the sum of its proper divisors (78924291).

82318845 is a wasteful number, since it uses less digits than its factorization.

82318845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570.

The product of its digits is 61440, while the sum is 39.

The square root of 82318845 is about 9072.9733274159. The cubic root of 82318845 is about 435.0105163266.

The spelling of 82318845 in words is "eighty-two million, three hundred eighteen thousand, eight hundred forty-five".