6940223 has 2 divisors, whose sum is σ = 6940224. Its totient is φ = 6940222.

The previous prime is 6940217. The next prime is 6940261. The reversal of 6940223 is 3220496.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6940223 - 2⁴ = 6940207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6940192 and 6940201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6940123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3470111 + 3470112.

It is an arithmetic number, because the mean of its divisors is an integer number (3470112).

Almost surely, 2^6940223 is an apocalyptic number.

6940223 is a deficient number, since it is larger than the sum of its proper divisors (1).

6940223 is an equidigital number, since it uses as much as digits as its factorization.

6940223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 6940223 is about 2634.4302989451. The cubic root of 6940223 is about 190.7470404755.

The spelling of 6940223 in words is "six million, nine hundred forty thousand, two hundred twenty-three".