7667449 has 2 divisors, whose sum is σ = 7667450. Its totient is φ = 7667448.

The previous prime is 7667417. The next prime is 7667453. The reversal of 7667449 is 9447667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7661824 + 5625 = 2768^2 + 75^2 .

It is an emirp because it is prime and its reverse (9447667) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7667449 - 2⁵ = 7667417 is a prime.

It is not a weakly prime, because it can be changed into another prime (7667749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3833724 + 3833725.

It is an arithmetic number, because the mean of its divisors is an integer number (3833725).

Almost surely, 2^7667449 is an apocalyptic number.

It is an amenable number.

7667449 is a deficient number, since it is larger than the sum of its proper divisors (1).

7667449 is an equidigital number, since it uses as much as digits as its factorization.

7667449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 43.

The square root of 7667449 is about 2769.0158901675. The cubic root of 7667449 is about 197.1894301655.

The spelling of 7667449 in words is "seven million, six hundred sixty-seven thousand, four hundred forty-nine".