3128943 has 16 divisors (see below), whose sum is σ = 4398336. Its totient is φ = 1974720.

The previous prime is 3128941. The next prime is 3128987. The reversal of 3128943 is 3498213.

It is not a de Polignac number, because 3128943 - 2¹ = 3128941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3128943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9288 + ... + 9618.

It is an arithmetic number, because the mean of its divisors is an integer number (274896).

Almost surely, 2^3128943 is an apocalyptic number.

3128943 is a deficient number, since it is larger than the sum of its proper divisors (1269393).

3128943 is a wasteful number, since it uses less digits than its factorization.

3128943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494.

The product of its digits is 5184, while the sum is 30.

The square root of 3128943 is about 1768.8818502093. The cubic root of 3128943 is about 146.2623512105.

The spelling of 3128943 in words is "three million, one hundred twenty-eight thousand, nine hundred forty-three".