3117869 has 4 divisors (see below), whose sum is σ = 3122460. Its totient is φ = 3113280.

The previous prime is 3117853. The next prime is 3117889. The reversal of 3117869 is 9687113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9687113 = 607 ⋅15959.

It can be written as a sum of positive squares in 2 ways, for example, as 1592644 + 1525225 = 1262^2 + 1235^2 .

It is a cyclic number.

It is not a de Polignac number, because 3117869 - 2⁴ = 3117853 is a prime.

It is a super-2 number, since 2×3117869² = 19442214202322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3117809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052 + ... + 2709.

It is an arithmetic number, because the mean of its divisors is an integer number (780615).

Almost surely, 2^3117869 is an apocalyptic number.

It is an amenable number.

3117869 is a deficient number, since it is larger than the sum of its proper divisors (4591).

3117869 is an equidigital number, since it uses as much as digits as its factorization.

3117869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4590.

The product of its digits is 9072, while the sum is 35.

The square root of 3117869 is about 1765.7488496386. The cubic root of 3117869 is about 146.0895959727.

The spelling of 3117869 in words is "three million, one hundred seventeen thousand, eight hundred sixty-nine".