6609769 has 2 divisors, whose sum is σ = 6609770. Its totient is φ = 6609768.

The previous prime is 6609761. The next prime is 6609781. The reversal of 6609769 is 9679066.

It is a happy number.

6609769 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6553600 + 56169 = 2560^2 + 237^2 .

It is a cyclic number.

It is not a de Polignac number, because 6609769 - 2³ = 6609761 is a prime.

It is a super-2 number, since 2×6609769² = 87378092466722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6609761) 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, 3304884 + 3304885.

It is an arithmetic number, because the mean of its divisors is an integer number (3304885).

Almost surely, 2^6609769 is an apocalyptic number.

It is an amenable number.

6609769 is a deficient number, since it is larger than the sum of its proper divisors (1).

6609769 is an equidigital number, since it uses as much as digits as its factorization.

6609769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 6609769 is about 2570.9471017506. The cubic root of 6609769 is about 187.6702477407.

It can be divided in two parts, 66097 and 69, that added together give a palindrome (66166).

The spelling of 6609769 in words is "six million, six hundred nine thousand, seven hundred sixty-nine".