7922231 has 2 divisors, whose sum is σ = 7922232. Its totient is φ = 7922230.

The previous prime is 7922227. The next prime is 7922261. The reversal of 7922231 is 1322297.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7922231 - 2² = 7922227 is a prime.

It is a super-2 number, since 2×7922231² = 125523488034722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7922231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7922261) 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 as a sum of consecutive naturals, namely, 3961115 + 3961116.

It is an arithmetic number, because the mean of its divisors is an integer number (3961116).

Almost surely, 2^7922231 is an apocalyptic number.

7922231 is a deficient number, since it is larger than the sum of its proper divisors (1).

7922231 is an equidigital number, since it uses as much as digits as its factorization.

7922231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 26.

The square root of 7922231 is about 2814.6458036492. The cubic root of 7922231 is about 199.3498135786.

The spelling of 7922231 in words is "seven million, nine hundred twenty-two thousand, two hundred thirty-one".