674669 has 2 divisors, whose sum is σ = 674670. Its totient is φ = 674668.

The previous prime is 674647. The next prime is 674677. The reversal of 674669 is 966476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 504100 + 170569 = 710^2 + 413^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674669 is a prime.

It is a super-2 number, since 2×674669² = 910356519122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 8.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674699) 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, 337334 + 337335.

It is an arithmetic number, because the mean of its divisors is an integer number (337335).

2⁶⁷⁴⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

674669 is a deficient number, since it is larger than the sum of its proper divisors (1).

674669 is an equidigital number, since it uses as much as digits as its factorization.

674669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The square root of 674669 is about 821.3823713716. The cubic root of 674669 is about 87.7061912854.

The spelling of 674669 in words is "six hundred seventy-four thousand, six hundred sixty-nine".