806122805 has 8 divisors (see below), whose sum is σ = 976739712. Its totient is φ = 638636688.

The previous prime is 806122789. The next prime is 806122817. The reversal of 806122805 is 508221608.

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

It is a cyclic number.

It is not a de Polignac number, because 806122805 - 2⁴ = 806122789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782129 + ... + 783158.

It is an arithmetic number, because the mean of its divisors is an integer number (122092464).

Almost surely, 2^806122805 is an apocalyptic number.

It is an amenable number.

806122805 is a deficient number, since it is larger than the sum of its proper divisors (170616907).

806122805 is a wasteful number, since it uses less digits than its factorization.

806122805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565395.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 806122805 is about 28392.3018615962. The cubic root of 806122805 is about 930.6800456378.

The spelling of 806122805 in words is "eight hundred six million, one hundred twenty-two thousand, eight hundred five".