3891446 has 16 divisors (see below), whose sum is σ = 6355104. Its totient is φ = 1776384.

The previous prime is 3891431. The next prime is 3891449. The reversal of 3891446 is 6441983.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3891449) 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 7 ways as a sum of consecutive naturals, for example, 1751 + ... + 3293.

It is an arithmetic number, because the mean of its divisors is an integer number (397194).

Almost surely, 2^3891446 is an apocalyptic number.

3891446 is a deficient number, since it is larger than the sum of its proper divisors (2463658).

3891446 is a wasteful number, since it uses less digits than its factorization.

3891446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655.

The product of its digits is 20736, while the sum is 35.

The square root of 3891446 is about 1972.6748338234. The cubic root of 3891446 is about 157.2909260807.

The spelling of 3891446 in words is "three million, eight hundred ninety-one thousand, four hundred forty-six".