3969117 has 18 divisors (see below), whose sum is σ = 5880602. Its totient is φ = 2579616.

The previous prime is 3969071. The next prime is 3969137. The reversal of 3969117 is 7119693.

3969117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 962361 + 3006756 = 981^2 + 1734^2 .

It is not a de Polignac number, because 3969117 - 2¹² = 3965021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3969137) 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 17 ways as a sum of consecutive naturals, for example, 25203 + ... + 25359.

Almost surely, 2^3969117 is an apocalyptic number.

It is an amenable number.

3969117 is a deficient number, since it is larger than the sum of its proper divisors (1911485).

3969117 is a wasteful number, since it uses less digits than its factorization.

3969117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 213 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 3969117 is about 1992.2642896965. The cubic root of 3969117 is about 158.3305183864.

Adding to 3969117 its sum of digits (36), we get a triangular number (3969153 = T₂₈₁₇).

The spelling of 3969117 in words is "three million, nine hundred sixty-nine thousand, one hundred seventeen".