675449 has 2 divisors, whose sum is σ = 675450. Its totient is φ = 675448.

The previous prime is 675419. The next prime is 675457. The reversal of 675449 is 944576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 573049 + 102400 = 757^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 675449 - 2¹² = 671353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (675419) 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, 337724 + 337725.

It is an arithmetic number, because the mean of its divisors is an integer number (337725).

2⁶⁷⁵⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

675449 is a deficient number, since it is larger than the sum of its proper divisors (1).

675449 is an equidigital number, since it uses as much as digits as its factorization.

675449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 675449 is about 821.8570435301. The cubic root of 675449 is about 87.7399779681.

The spelling of 675449 in words is "six hundred seventy-five thousand, four hundred forty-nine".