673567 has 2 divisors, whose sum is σ = 673568. Its totient is φ = 673566.

The previous prime is 673553. The next prime is 673573. The reversal of 673567 is 765376.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 673567 - 2¹¹ = 671519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673667) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336783 + 336784.

It is an arithmetic number, because the mean of its divisors is an integer number (336784).

2⁶⁷³⁵⁶⁷ is an apocalyptic number.

673567 is a deficient number, since it is larger than the sum of its proper divisors (1).

673567 is an equidigital number, since it uses as much as digits as its factorization.

673567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 34.

The square root of 673567 is about 820.7112768812. The cubic root of 673567 is about 87.6584123527.

Subtracting 673567 from its reverse (765376), we obtain a square (91809 = 303²).

The spelling of 673567 in words is "six hundred seventy-three thousand, five hundred sixty-seven".