3128841 has 8 divisors (see below), whose sum is σ = 4635360. Its totient is φ = 2085876.

The previous prime is 3128821. The next prime is 3128843. The reversal of 3128841 is 1488213.

It is not a de Polignac number, because 3128841 - 2⁹ = 3128329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 115883 = 3128841 / (3 + 1 + 2 + 8 + 8 + 4 + 1).

It is not an unprimeable number, because it can be changed into a prime (3128843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57915 + ... + 57968.

It is an arithmetic number, because the mean of its divisors is an integer number (579420).

Almost surely, 2^3128841 is an apocalyptic number.

It is an amenable number.

3128841 is a deficient number, since it is larger than the sum of its proper divisors (1506519).

3128841 is a wasteful number, since it uses less digits than its factorization.

3128841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115892 (or 115886 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 3128841 is about 1768.8530182013. The cubic root of 3128841 is about 146.2607618642.

It can be divided in two parts, 31288 and 41, that added together give a square (31329 = 177²).

The spelling of 3128841 in words is "three million, one hundred twenty-eight thousand, eight hundred forty-one".