822404137 has 4 divisors (see below), whose sum is σ = 822520656. Its totient is φ = 822287620.

The previous prime is 822404129. The next prime is 822404161. The reversal of 822404137 is 731404228.

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 822404137 - 2³ = 822404129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 822404099 and 822404108.

It is not an unprimeable number, because it can be changed into a prime (822204137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46939 + ... + 62032.

It is an arithmetic number, because the mean of its divisors is an integer number (205630164).

Almost surely, 2^822404137 is an apocalyptic number.

It is an amenable number.

822404137 is a deficient number, since it is larger than the sum of its proper divisors (116519).

822404137 is a wasteful number, since it uses less digits than its factorization.

822404137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116518.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 822404137 is about 28677.5894558800. The cubic root of 822404137 is about 936.9040050000.

Subtracting from 822404137 its reverse (731404228), we obtain a palindrome (90999909).

The spelling of 822404137 in words is "eight hundred twenty-two million, four hundred four thousand, one hundred thirty-seven".