3668969 has 2 divisors, whose sum is σ = 3668970. Its totient is φ = 3668968.

The previous prime is 3668953. The next prime is 3668971. The reversal of 3668969 is 9698663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3655744 + 13225 = 1912^2 + 115^2 .

It is a cyclic number.

It is not a de Polignac number, because 3668969 - 2⁴ = 3668953 is a prime.

It is a super-2 number, since 2×3668969² = 26922667045922, which contains 22 as substring.

Together with 3668971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3668909) 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, 1834484 + 1834485.

It is an arithmetic number, because the mean of its divisors is an integer number (1834485).

Almost surely, 2^3668969 is an apocalyptic number.

It is an amenable number.

3668969 is a deficient number, since it is larger than the sum of its proper divisors (1).

3668969 is an equidigital number, since it uses as much as digits as its factorization.

3668969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 47.

The square root of 3668969 is about 1915.4552983560. The cubic root of 3668969 is about 154.2344352007.

The spelling of 3668969 in words is "three million, six hundred sixty-eight thousand, nine hundred sixty-nine".