3831646 has 32 divisors (see below), whose sum is σ = 7277760. Its totient is φ = 1472256.

The previous prime is 3831643. The next prime is 3831649. The reversal of 3831646 is 6461383.

It is an interprime number because it is at equal distance from previous prime (3831643) and next prime (3831649).

It is a super-2 number, since 2×3831646² = 29363022138632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3831643) 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, 6450 + ... + 7018.

It is an arithmetic number, because the mean of its divisors is an integer number (227430).

Almost surely, 2^3831646 is an apocalyptic number.

3831646 is a deficient number, since it is larger than the sum of its proper divisors (3446114).

3831646 is a wasteful number, since it uses less digits than its factorization.

3831646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628.

The product of its digits is 10368, while the sum is 31.

The square root of 3831646 is about 1957.4590672604. The cubic root of 3831646 is about 156.4810648494.

It can be divided in two parts, 38 and 31646, that added together give a square (31684 = 178²).

The spelling of 3831646 in words is "three million, eight hundred thirty-one thousand, six hundred forty-six".