3128843 has 2 divisors, whose sum is σ = 3128844. Its totient is φ = 3128842.

The previous prime is 3128821. The next prime is 3128849. The reversal of 3128843 is 3488213.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3128843 - 2⁶ = 3128779 is a prime.

It is not a weakly prime, because it can be changed into another prime (3128849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564421 + 1564422.

It is an arithmetic number, because the mean of its divisors is an integer number (1564422).

Almost surely, 2^3128843 is an apocalyptic number.

3128843 is a deficient number, since it is larger than the sum of its proper divisors (1).

3128843 is an equidigital number, since it uses as much as digits as its factorization.

3128843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 29.

The square root of 3128843 is about 1768.8535835393. The cubic root of 3128843 is about 146.2607930282.

The spelling of 3128843 in words is "three million, one hundred twenty-eight thousand, eight hundred forty-three".