82104773 has 4 divisors (see below), whose sum is σ = 82457388. Its totient is φ = 81752160.

The previous prime is 82104769. The next prime is 82104787. The reversal of 82104773 is 37740128.

It is a happy number.

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 5769604 + 76335169 = 2402^2 + 8737^2 .

It is a cyclic number.

It is not a de Polignac number, because 82104773 - 2² = 82104769 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82104703) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 175958 + ... + 176423.

It is an arithmetic number, because the mean of its divisors is an integer number (20614347).

Almost surely, 2^82104773 is an apocalyptic number.

It is an amenable number.

82104773 is a deficient number, since it is larger than the sum of its proper divisors (352615).

82104773 is a wasteful number, since it uses less digits than its factorization.

82104773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352614.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 82104773 is about 9061.1684125172. The cubic root of 82104773 is about 434.6331041176.

The spelling of 82104773 in words is "eighty-two million, one hundred four thousand, seven hundred seventy-three".