3872943 has 12 divisors (see below), whose sum is σ = 5611320. Its totient is φ = 2574096.

The previous prime is 3872933. The next prime is 3872959. The reversal of 3872943 is 3492783.

It is not a de Polignac number, because 3872943 - 2¹⁰ = 3871919 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 3872898 and 3872907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3872933) 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 11 ways as a sum of consecutive naturals, for example, 5548 + ... + 6206.

It is an arithmetic number, because the mean of its divisors is an integer number (467610).

Almost surely, 2^3872943 is an apocalyptic number.

3872943 is a deficient number, since it is larger than the sum of its proper divisors (1738377).

3872943 is a wasteful number, since it uses less digits than its factorization.

3872943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318 (or 1315 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 3872943 is about 1967.9794206241. The cubic root of 3872943 is about 157.0412349261.

The spelling of 3872943 in words is "three million, eight hundred seventy-two thousand, nine hundred forty-three".