6749569 has 2 divisors, whose sum is σ = 6749570. Its totient is φ = 6749568.

The previous prime is 6749563. The next prime is 6749593. The reversal of 6749569 is 9659476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5345344 + 1404225 = 2312^2 + 1185^2 .

It is a cyclic number.

It is not a de Polignac number, because 6749569 - 2¹⁷ = 6618497 is a prime.

It is a super-2 number, since 2×6749569² = 91113363371522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6749563) 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, 3374784 + 3374785.

It is an arithmetic number, because the mean of its divisors is an integer number (3374785).

Almost surely, 2^6749569 is an apocalyptic number.

It is an amenable number.

6749569 is a deficient number, since it is larger than the sum of its proper divisors (1).

6749569 is an equidigital number, since it uses as much as digits as its factorization.

6749569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 46.

The square root of 6749569 is about 2597.9932640405. The cubic root of 6749569 is about 188.9841349840.

The spelling of 6749569 in words is "six million, seven hundred forty-nine thousand, five hundred sixty-nine".