3187841 has 2 divisors, whose sum is σ = 3187842. Its totient is φ = 3187840.

The previous prime is 3187831. The next prime is 3187859. The reversal of 3187841 is 1487813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2958400 + 229441 = 1720^2 + 479^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3187841 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3187798 and 3187807.

It is not a weakly prime, because it can be changed into another prime (3187831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1593920 + 1593921.

It is an arithmetic number, because the mean of its divisors is an integer number (1593921).

Almost surely, 2^3187841 is an apocalyptic number.

It is an amenable number.

3187841 is a deficient number, since it is larger than the sum of its proper divisors (1).

3187841 is an equidigital number, since it uses as much as digits as its factorization.

3187841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 32.

The square root of 3187841 is about 1785.4526036834. The cubic root of 3187841 is about 147.1743808055.

The spelling of 3187841 in words is "three million, one hundred eighty-seven thousand, eight hundred forty-one".