82805086 has 16 divisors (see below), whose sum is σ = 152871264. Its totient is φ = 32757984.

The previous prime is 82805081. The next prime is 82805087. The reversal of 82805086 is 68050828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82805081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227305 + ... + 227668.

It is an arithmetic number, because the mean of its divisors is an integer number (9554454).

Almost surely, 2^82805086 is an apocalyptic number.

82805086 is a deficient number, since it is larger than the sum of its proper divisors (70066178).

82805086 is a wasteful number, since it uses less digits than its factorization.

82805086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454995.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 82805086 is about 9099.7299959944. The cubic root of 82805086 is about 435.8653422216.

It can be divided in two parts, 8280 and 5086, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 82805086 in words is "eighty-two million, eight hundred five thousand, eighty-six".