805981622 has 8 divisors (see below), whose sum is σ = 1213275672. Its totient is φ = 401556400.

The previous prime is 805981613. The next prime is 805981667. The reversal of 805981622 is 226189508.

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

It is a self number, because there is not a number n which added to its sum of digits gives 805981622.

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 3 ways as a sum of consecutive naturals, for example, 716504 + ... + 717627.

It is an arithmetic number, because the mean of its divisors is an integer number (151659459).

Almost surely, 2^805981622 is an apocalyptic number.

805981622 is a deficient number, since it is larger than the sum of its proper divisors (407294050).

805981622 is a wasteful number, since it uses less digits than its factorization.

805981622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434414.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 805981622 is about 28389.8154625915. The cubic root of 805981622 is about 930.6257098833.

The spelling of 805981622 in words is "eight hundred five million, nine hundred eighty-one thousand, six hundred twenty-two".