2971943 has 4 divisors (see below), whose sum is σ = 3200568. Its totient is φ = 2743320.

The previous prime is 2971909. The next prime is 2971963. The reversal of 2971943 is 3491792.

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

It is a cyclic number.

It is not a de Polignac number, because 2971943 - 2⁶ = 2971879 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 (2971963) 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, 114293 + ... + 114318.

It is an arithmetic number, because the mean of its divisors is an integer number (800142).

2^2971943 is an apocalyptic number.

2971943 is a deficient number, since it is larger than the sum of its proper divisors (228625).

2971943 is a wasteful number, since it uses less digits than its factorization.

2971943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228624.

The product of its digits is 13608, while the sum is 35.

The square root of 2971943 is about 1723.9324232695. The cubic root of 2971943 is about 143.7739347669.

The spelling of 2971943 in words is "two million, nine hundred seventy-one thousand, nine hundred forty-three".