82005783 has 16 divisors (see below), whose sum is σ = 110470656. Its totient is φ = 54109440.

The previous prime is 82005779. The next prime is 82005799. The reversal of 82005783 is 38750028.

It is not a de Polignac number, because 82005783 - 2² = 82005779 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82005733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223266 + ... + 223632.

It is an arithmetic number, because the mean of its divisors is an integer number (6904416).

Almost surely, 2^82005783 is an apocalyptic number.

82005783 is a deficient number, since it is larger than the sum of its proper divisors (28464873).

82005783 is a wasteful number, since it uses less digits than its factorization.

82005783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 82005783 is about 9055.7044452654. The cubic root of 82005783 is about 434.4583614004.

The spelling of 82005783 in words is "eighty-two million, five thousand, seven hundred eighty-three".