3970943 has 4 divisors (see below), whose sum is σ = 4179960. Its totient is φ = 3761928.

The previous prime is 3970903. The next prime is 3970949. The reversal of 3970943 is 3490793.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3970943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3970949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104480 + ... + 104517.

It is an arithmetic number, because the mean of its divisors is an integer number (1044990).

Almost surely, 2^3970943 is an apocalyptic number.

3970943 is a deficient number, since it is larger than the sum of its proper divisors (209017).

3970943 is a wasteful number, since it uses less digits than its factorization.

3970943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209016.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 3970943 is about 1992.7225095331. The cubic root of 3970943 is about 158.3547947517.

It can be divided in two parts, 3970 and 943, that added together give a cube (4913 = 17³).

The spelling of 3970943 in words is "three million, nine hundred seventy thousand, nine hundred forty-three".