820006822 has 8 divisors (see below), whose sum is σ = 1233727272. Its totient is φ = 408764400.

The previous prime is 820006801. The next prime is 820006841. The reversal of 820006822 is 228600028.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×820006822² = 1344822376253079368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618679 + ... + 620002.

It is an arithmetic number, because the mean of its divisors is an integer number (154215909).

Almost surely, 2^820006822 is an apocalyptic number.

820006822 is a deficient number, since it is larger than the sum of its proper divisors (413720450).

820006822 is a wasteful number, since it uses less digits than its factorization.

820006822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239014.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 820006822 is about 28635.7612435919. The cubic root of 820006822 is about 935.9927579674.

The spelling of 820006822 in words is "eight hundred twenty million, six thousand, eight hundred twenty-two".