3939169 has 4 divisors (see below), whose sum is σ = 4242196. Its totient is φ = 3636144.

The previous prime is 3939149. The next prime is 3939181. The reversal of 3939169 is 9619393.

3939169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 788544 + 3150625 = 888^2 + 1775^2 .

It is a cyclic number.

It is not a de Polignac number, because 3939169 - 2⁹ = 3938657 is a prime.

It is a super-2 number, since 2×3939169² = 31034104821122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3939149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151494 + ... + 151519.

It is an arithmetic number, because the mean of its divisors is an integer number (1060549).

Almost surely, 2^3939169 is an apocalyptic number.

It is an amenable number.

3939169 is a deficient number, since it is larger than the sum of its proper divisors (303027).

3939169 is a wasteful number, since it uses less digits than its factorization.

3939169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303026.

The product of its digits is 39366, while the sum is 40.

The square root of 3939169 is about 1984.7339872134. The cubic root of 3939169 is about 157.9312979097.

The spelling of 3939169 in words is "three million, nine hundred thirty-nine thousand, one hundred sixty-nine".