3969349 has 2 divisors, whose sum is σ = 3969350. Its totient is φ = 3969348.

The previous prime is 3969307. The next prime is 3969367. The reversal of 3969349 is 9439693.

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., 3305124 + 664225 = 1818^2 + 815^2 .

It is a cyclic number.

It is not a de Polignac number, because 3969349 - 2⁷ = 3969221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3969389) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1984674 + 1984675.

It is an arithmetic number, because the mean of its divisors is an integer number (1984675).

Almost surely, 2^3969349 is an apocalyptic number.

It is an amenable number.

3969349 is a deficient number, since it is larger than the sum of its proper divisors (1).

3969349 is an equidigital number, since it uses as much as digits as its factorization.

3969349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157464, while the sum is 43.

The square root of 3969349 is about 1992.3225140524. The cubic root of 3969349 is about 158.3336032005. Note that the first 3 decimals are identical.

The spelling of 3969349 in words is "three million, nine hundred sixty-nine thousand, three hundred forty-nine".