7222823 has 2 divisors, whose sum is σ = 7222824. Its totient is φ = 7222822.

The previous prime is 7222811. The next prime is 7222849. The reversal of 7222823 is 3282227.

It is an a-pointer prime, because the next prime (7222849) can be obtained adding 7222823 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7222823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7222792 and 7222801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7222123) 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, 3611411 + 3611412.

It is an arithmetic number, because the mean of its divisors is an integer number (3611412).

Almost surely, 2^7222823 is an apocalyptic number.

7222823 is a deficient number, since it is larger than the sum of its proper divisors (1).

7222823 is an equidigital number, since it uses as much as digits as its factorization.

7222823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 26.

The square root of 7222823 is about 2687.5310230768. The cubic root of 7222823 is about 193.3016928667.

The spelling of 7222823 in words is "seven million, two hundred twenty-two thousand, eight hundred twenty-three".