811986422 has 8 divisors (see below), whose sum is σ = 1311670416. Its totient is φ = 374762952.

The previous prime is 811986403. The next prime is 811986517. The reversal of 811986422 is 224689118.

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 811986422.

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, 15615098 + ... + 15615149.

It is an arithmetic number, because the mean of its divisors is an integer number (163958802).

Almost surely, 2^811986422 is an apocalyptic number.

811986422 is a deficient number, since it is larger than the sum of its proper divisors (499683994).

811986422 is a wasteful number, since it uses less digits than its factorization.

811986422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31230262.

The product of its digits is 55296, while the sum is 41.

The square root of 811986422 is about 28495.3754493602. The cubic root of 811986422 is about 932.9311389835.

The spelling of 811986422 in words is "eight hundred eleven million, nine hundred eighty-six thousand, four hundred twenty-two".