20822037 has 4 divisors (see below), whose sum is σ = 27762720. Its totient is φ = 13881356.

The previous prime is 20822033. The next prime is 20822047. The reversal of 20822037 is 73022802.

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 20822037 - 2² = 20822033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20821998 and 20822016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20822033) 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 3 ways as a sum of consecutive naturals, for example, 3470337 + ... + 3470342.

It is an arithmetic number, because the mean of its divisors is an integer number (6940680).

Almost surely, 2^20822037 is an apocalyptic number.

It is an amenable number.

20822037 is a deficient number, since it is larger than the sum of its proper divisors (6940683).

20822037 is an equidigital number, since it uses as much as digits as its factorization.

20822037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6940682.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 20822037 is about 4563.1170267702. The cubic root of 20822037 is about 275.1108621886.

Adding to 20822037 its reverse (73022802), we get a palindrome (93844839).

The spelling of 20822037 in words is "twenty million, eight hundred twenty-two thousand, thirty-seven".