820806082 has 16 divisors (see below), whose sum is σ = 1274486400. Its totient is φ = 395995600.

The previous prime is 820806067. The next prime is 820806089. The reversal of 820806082 is 280608028.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (820806089) 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, 111207 + ... + 118357.

It is an arithmetic number, because the mean of its divisors is an integer number (79655400).

Almost surely, 2^820806082 is an apocalyptic number.

820806082 is a deficient number, since it is larger than the sum of its proper divisors (453680318).

820806082 is a wasteful number, since it uses less digits than its factorization.

820806082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9161.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 820806082 is about 28649.7134715166. The cubic root of 820806082 is about 936.2967630176.

The spelling of 820806082 in words is "eight hundred twenty million, eight hundred six thousand, eighty-two".