674444489 has 2 divisors, whose sum is σ = 674444490. Its totient is φ = 674444488.

The previous prime is 674444453. The next prime is 674444497. The reversal of 674444489 is 984444476.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 347449600 + 326994889 = 18640^2 + 18083^2 .

It is a cyclic number.

It is not a de Polignac number, because 674444489 - 2¹⁶ = 674378953 is a prime.

It is a super-2 number, since 2×674444489² = 909750737484942242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (674444189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337222244 + 337222245.

It is an arithmetic number, because the mean of its divisors is an integer number (337222245).

Almost surely, 2^674444489 is an apocalyptic number.

It is an amenable number.

674444489 is a deficient number, since it is larger than the sum of its proper divisors (1).

674444489 is an equidigital number, since it uses as much as digits as its factorization.

674444489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3096576, while the sum is 50.

The square root of 674444489 is about 25970.0690988684. The cubic root of 674444489 is about 876.9646148244.

The spelling of 674444489 in words is "six hundred seventy-four million, four hundred forty-four thousand, four hundred eighty-nine".