82841845 has 8 divisors (see below), whose sum is σ = 100136664. Its totient is φ = 65789184.

The previous prime is 82841821. The next prime is 82841851. The reversal of 82841845 is 54814828.

It can be written as a sum of positive squares in 4 ways, for example, as 27279729 + 55562116 = 5223^2 + 7454^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82841845 - 2⁵ = 82841813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82841798 and 82841807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59784 + ... + 61153.

It is an arithmetic number, because the mean of its divisors is an integer number (12517083).

Almost surely, 2^82841845 is an apocalyptic number.

It is an amenable number.

82841845 is a deficient number, since it is larger than the sum of its proper divisors (17294819).

82841845 is a wasteful number, since it uses less digits than its factorization.

82841845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121079.

The product of its digits is 81920, while the sum is 40.

The square root of 82841845 is about 9101.7495570907. The cubic root of 82841845 is about 435.9298294193.

The spelling of 82841845 in words is "eighty-two million, eight hundred forty-one thousand, eight hundred forty-five".