1671223 has 2 divisors, whose sum is σ = 1671224. Its totient is φ = 1671222.
The previous prime is 1671211. The next prime is 1671227. The reversal of 1671223 is 3221761.
It is a strong prime.
It is an emirp because it is prime and its reverse (3221761) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1671223 - 25 = 1671191 is a prime.
It is an Ulam number.
It is a junction number, because it is equal to n+sod(n) for n = 1671194 and 1671203.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1671227) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835611 + 835612.
It is an arithmetic number, because the mean of its divisors is an integer number (835612).
21671223 is an apocalyptic number.
1671223 is a deficient number, since it is larger than the sum of its proper divisors (1).
1671223 is an equidigital number, since it uses as much as digits as its factorization.
1671223 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 504, while the sum is 22.
The square root of 1671223 is about 1292.7579046364. The cubic root of 1671223 is about 118.6710544535.
Adding to 1671223 its reverse (3221761), we get a palindrome (4892984).
The spelling of 1671223 in words is "one million, six hundred seventy-one thousand, two hundred twenty-three".
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