3971343 has 8 divisors (see below), whose sum is σ = 5395248. Its totient is φ = 2597504.

The previous prime is 3971333. The next prime is 3971377. The reversal of 3971343 is 3431793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3971343 - 2⁵ = 3971311 is a prime.

3971343 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3971343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3971333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12330 + ... + 12647.

It is an arithmetic number, because the mean of its divisors is an integer number (674406).

Almost surely, 2^3971343 is an apocalyptic number.

3971343 is a deficient number, since it is larger than the sum of its proper divisors (1423905).

3971343 is a wasteful number, since it uses less digits than its factorization.

3971343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25033.

The product of its digits is 6804, while the sum is 30.

The square root of 3971343 is about 1992.8228722092. The cubic root of 3971343 is about 158.3601116912.

The spelling of 3971343 in words is "three million, nine hundred seventy-one thousand, three hundred forty-three".