816927422 has 4 divisors (see below), whose sum is σ = 1225391136. Its totient is φ = 408463710.

The previous prime is 816927383. The next prime is 816927431. The reversal of 816927422 is 224729618.

816927422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 816927422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204231854 + ... + 204231857.

It is an arithmetic number, because the mean of its divisors is an integer number (306347784).

Almost surely, 2^816927422 is an apocalyptic number.

816927422 is a deficient number, since it is larger than the sum of its proper divisors (408463714).

816927422 is a wasteful number, since it uses less digits than its factorization.

816927422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408463713.

The product of its digits is 96768, while the sum is 41.

The square root of 816927422 is about 28581.9422363142. The cubic root of 816927422 is about 934.8196329140.

The spelling of 816927422 in words is "eight hundred sixteen million, nine hundred twenty-seven thousand, four hundred twenty-two".