812471322 has 32 divisors (see below), whose sum is σ = 1778636160. Its totient is φ = 245891520.

The previous prime is 812471311. The next prime is 812471329. The reversal of 812471322 is 223174218.

It is a self number, because there is not a number n which added to its sum of digits gives 812471322.

It is not an unprimeable number, because it can be changed into a prime (812471329) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 80622 + ... + 90137.

It is an arithmetic number, because the mean of its divisors is an integer number (55582380).

Almost surely, 2^812471322 is an apocalyptic number.

812471322 is an abundant number, since it is smaller than the sum of its proper divisors (966164838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812471322 is a wasteful number, since it uses less digits than its factorization.

812471322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170838.

The product of its digits is 5376, while the sum is 30.

The square root of 812471322 is about 28503.8825776419. The cubic root of 812471322 is about 933.1168105157.

The spelling of 812471322 in words is "eight hundred twelve million, four hundred seventy-one thousand, three hundred twenty-two".