82113775 has 12 divisors (see below), whose sum is σ = 104305824. Its totient is φ = 64088000.

The previous prime is 82113743. The next prime is 82113817. The reversal of 82113775 is 57731128.

It is not a de Polignac number, because 82113775 - 2⁵ = 82113743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82113775.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39031 + ... + 41080.

It is an arithmetic number, because the mean of its divisors is an integer number (8692152).

Almost surely, 2^82113775 is an apocalyptic number.

82113775 is a deficient number, since it is larger than the sum of its proper divisors (22192049).

82113775 is a wasteful number, since it uses less digits than its factorization.

82113775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80162 (or 80157 counting only the distinct ones).

The product of its digits is 11760, while the sum is 34.

The square root of 82113775 is about 9061.6651339585. The cubic root of 82113775 is about 434.6489879860.

The spelling of 82113775 in words is "eighty-two million, one hundred thirteen thousand, seven hundred seventy-five".