3831869 has 4 divisors (see below), whose sum is σ = 3998496. Its totient is φ = 3665244.

The previous prime is 3831827. The next prime is 3831871. The reversal of 3831869 is 9681383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3831869 is a prime.

It is a super-2 number, since 2×3831869² = 29366440066322, 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 (3831889) 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, 83279 + ... + 83324.

It is an arithmetic number, because the mean of its divisors is an integer number (999624).

Almost surely, 2^3831869 is an apocalyptic number.

It is an amenable number.

3831869 is a deficient number, since it is larger than the sum of its proper divisors (166627).

3831869 is a wasteful number, since it uses less digits than its factorization.

3831869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166626.

The product of its digits is 31104, while the sum is 38.

The square root of 3831869 is about 1957.5160280314. The cubic root of 3831869 is about 156.4841004987.

The spelling of 3831869 in words is "three million, eight hundred thirty-one thousand, eight hundred sixty-nine".