673747 has 2 divisors, whose sum is σ = 673748. Its totient is φ = 673746.

The previous prime is 673669. The next prime is 673769. The reversal of 673747 is 747376.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 673747 - 2⁷ = 673619 is a prime.

It is not a weakly prime, because it can be changed into another prime (673787) 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, 336873 + 336874.

It is an arithmetic number, because the mean of its divisors is an integer number (336874).

2⁶⁷³⁷⁴⁷ is an apocalyptic number.

673747 is a deficient number, since it is larger than the sum of its proper divisors (1).

673747 is an equidigital number, since it uses as much as digits as its factorization.

673747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24696, while the sum is 34.

The square root of 673747 is about 820.8209305324. The cubic root of 673747 is about 87.6662200931. Note that the first 3 decimals are identical.

The spelling of 673747 in words is "six hundred seventy-three thousand, seven hundred forty-seven".