3831382809 has 16 divisors (see below), whose sum is σ = 5728201600. Its totient is φ = 2530819728.

The previous prime is 3831382771. The next prime is 3831382817. The reversal of 3831382809 is 9082831383.

It is not a de Polignac number, because 3831382809 - 2¹² = 3831378713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3831382829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647989 + ... + 653874.

It is an arithmetic number, because the mean of its divisors is an integer number (358012600).

Almost surely, 2^3831382809 is an apocalyptic number.

It is an amenable number.

3831382809 is a deficient number, since it is larger than the sum of its proper divisors (1896818791).

3831382809 is a wasteful number, since it uses less digits than its factorization.

3831382809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301981 (or 1301975 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 3831382809 is about 61898.1648274002. The cubic root of 3831382809 is about 1564.7748193742.

The spelling of 3831382809 in words is "three billion, eight hundred thirty-one million, three hundred eighty-two thousand, eight hundred nine".