7422223 has 2 divisors, whose sum is σ = 7422224. Its totient is φ = 7422222.

The previous prime is 7422221. The next prime is 7422227. The reversal of 7422223 is 3222247.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7422223 - 2¹ = 7422221 is a prime.

Together with 7422221, it forms a pair of twin primes.

It is an Ulam number.

7422223 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7422194 and 7422203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7422221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3711111 + 3711112.

It is an arithmetic number, because the mean of its divisors is an integer number (3711112).

Almost surely, 2^7422223 is an apocalyptic number.

7422223 is a deficient number, since it is larger than the sum of its proper divisors (1).

7422223 is an equidigital number, since it uses as much as digits as its factorization.

7422223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 22.

The square root of 7422223 is about 2724.3757083046. The cubic root of 7422223 is about 195.0643924970.

The spelling of 7422223 in words is "seven million, four hundred twenty-two thousand, two hundred twenty-three".