3117969 has 6 divisors (see below), whose sum is σ = 4503746. Its totient is φ = 2078640.

The previous prime is 3117967. The next prime is 3117991. The reversal of 3117969 is 9697113.

It can be written as a sum of positive squares in only one way, i.e., 2772225 + 345744 = 1665^2 + 588^2 .

It is not a de Polignac number, because 3117969 - 2¹ = 3117967 is a prime.

It is a super-2 number, since 2×3117969² = 19443461369922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3117967) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173212 + ... + 173229.

Almost surely, 2^3117969 is an apocalyptic number.

It is an amenable number.

3117969 is a deficient number, since it is larger than the sum of its proper divisors (1385777).

3117969 is a wasteful number, since it uses less digits than its factorization.

3117969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346447 (or 346444 counting only the distinct ones).

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

The square root of 3117969 is about 1765.7771660093. Note that the first 3 decimals coincide. The cubic root of 3117969 is about 146.0911578091.

The spelling of 3117969 in words is "three million, one hundred seventeen thousand, nine hundred sixty-nine".