3971043 has 12 divisors (see below), whose sum is σ = 5754840. Its totient is φ = 2638656.

The previous prime is 3971041. The next prime is 3971053. The reversal of 3971043 is 3401793.

It is not a de Polignac number, because 3971043 - 2¹ = 3971041 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 3970998 and 3971016.

It is not an unprimeable number, because it can be changed into a prime (3971041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3388 + ... + 4406.

It is an arithmetic number, because the mean of its divisors is an integer number (479570).

Almost surely, 2^3971043 is an apocalyptic number.

3971043 is a deficient number, since it is larger than the sum of its proper divisors (1783797).

3971043 is a wasteful number, since it uses less digits than its factorization.

3971043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458 (or 1455 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 3971043 is about 1992.7476006760. The cubic root of 3971043 is about 158.3561240200.

The spelling of 3971043 in words is "three million, nine hundred seventy-one thousand, forty-three".