670223 has 2 divisors, whose sum is σ = 670224. Its totient is φ = 670222.

The previous prime is 670217. The next prime is 670231. The reversal of 670223 is 322076.

670223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670223 is a prime.

It is a Sophie Germain prime.

It is equal to p₅₄₃₂₆ and since 670223 and 54326 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 670195 and 670204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335111 + 335112.

It is an arithmetic number, because the mean of its divisors is an integer number (335112).

2⁶⁷⁰²²³ is an apocalyptic number.

670223 is a deficient number, since it is larger than the sum of its proper divisors (1).

670223 is an equidigital number, since it uses as much as digits as its factorization.

670223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 670223 is about 818.6714847850. The cubic root of 670223 is about 87.5131082403.

Adding to 670223 its reverse (322076), we get a palindrome (992299).

The spelling of 670223 in words is "six hundred seventy thousand, two hundred twenty-three".