822427793 has 4 divisors (see below), whose sum is σ = 897193968. Its totient is φ = 747661620.

The previous prime is 822427777. The next prime is 822427811. The reversal of 822427793 is 397724228.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 822427793 - 2⁴ = 822427777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (822427703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37383071 + ... + 37383092.

It is an arithmetic number, because the mean of its divisors is an integer number (224298492).

Almost surely, 2^822427793 is an apocalyptic number.

It is an amenable number.

822427793 is a deficient number, since it is larger than the sum of its proper divisors (74766175).

822427793 is a wasteful number, since it uses less digits than its factorization.

822427793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74766174.

The product of its digits is 338688, while the sum is 44.

The square root of 822427793 is about 28678.0019004114. The cubic root of 822427793 is about 936.9129880889.

The spelling of 822427793 in words is "eight hundred twenty-two million, four hundred twenty-seven thousand, seven hundred ninety-three".