822427899 has 8 divisors (see below), whose sum is σ = 1106275152. Its totient is φ = 543432960.

The previous prime is 822427891. The next prime is 822427909. The reversal of 822427899 is 998724228.

It is a happy number.

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

It is not a de Polignac number, because 822427899 - 2³ = 822427891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (822427891) 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 7 ways as a sum of consecutive naturals, for example, 1212682 + ... + 1213359.

It is an arithmetic number, because the mean of its divisors is an integer number (138284394).

Almost surely, 2^822427899 is an apocalyptic number.

822427899 is a deficient number, since it is larger than the sum of its proper divisors (283847253).

822427899 is a wasteful number, since it uses less digits than its factorization.

822427899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426157.

The product of its digits is 1161216, while the sum is 51.

The square root of 822427899 is about 28678.0037485178. The cubic root of 822427899 is about 936.9130283408.

The spelling of 822427899 in words is "eight hundred twenty-two million, four hundred twenty-seven thousand, eight hundred ninety-nine".