7641223 has 2 divisors, whose sum is σ = 7641224. Its totient is φ = 7641222.

The previous prime is 7641197. The next prime is 7641241. The reversal of 7641223 is 3221467.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7641223 is a prime.

7641223 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7641253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3820611 + 3820612.

It is an arithmetic number, because the mean of its divisors is an integer number (3820612).

Almost surely, 2^7641223 is an apocalyptic number.

7641223 is a deficient number, since it is larger than the sum of its proper divisors (1).

7641223 is an equidigital number, since it uses as much as digits as its factorization.

7641223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 25.

The square root of 7641223 is about 2764.2762162997. The cubic root of 7641223 is about 196.9643488957.

The spelling of 7641223 in words is "seven million, six hundred forty-one thousand, two hundred twenty-three".