247223 has 2 divisors, whose sum is σ = 247224. Its totient is φ = 247222.

The previous prime is 247201. The next prime is 247229. The reversal of 247223 is 322742.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-247223 is a prime.

It is a super-2 number, since 2×247223² = 122238423458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247195 and 247204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123611 + 123612.

It is an arithmetic number, because the mean of its divisors is an integer number (123612).

2²⁴⁷²²³ is an apocalyptic number.

247223 is a deficient number, since it is larger than the sum of its proper divisors (1).

247223 is an equidigital number, since it uses as much as digits as its factorization.

247223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 20.

The square root of 247223 is about 497.2152451404. The cubic root of 247223 is about 62.7619300820.

Adding to 247223 its reverse (322742), we get a palindrome (569965).

The spelling of 247223 in words is "two hundred forty-seven thousand, two hundred twenty-three", and thus it is an iban number.