3806831 has 16 divisors (see below), whose sum is σ = 4589568. Its totient is φ = 3088800.

The previous prime is 3806767. The next prime is 3806837. The reversal of 3806831 is 1386083.

It is a cyclic number.

It is not a de Polignac number, because 3806831 - 2⁶ = 3806767 is a prime.

It is a super-2 number, since 2×3806831² = 28983924525122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3806794 and 3806803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3806837) 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 15 ways as a sum of consecutive naturals, for example, 11336 + ... + 11666.

It is an arithmetic number, because the mean of its divisors is an integer number (286848).

Almost surely, 2^3806831 is an apocalyptic number.

3806831 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3806831 is a deficient number, since it is larger than the sum of its proper divisors (782737).

3806831 is a wasteful number, since it uses less digits than its factorization.

3806831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 3806831 is about 1951.1101967854. The cubic root of 3806831 is about 156.1425253452.

The spelling of 3806831 in words is "three million, eight hundred six thousand, eight hundred thirty-one".