3287881 has 2 divisors, whose sum is σ = 3287882. Its totient is φ = 3287880.

The previous prime is 3287861. The next prime is 3287887. The reversal of 3287881 is 1887823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2673225 + 614656 = 1635^2 + 784^2 .

It is a cyclic number.

It is not a de Polignac number, because 3287881 - 2¹⁷ = 3156809 is a prime.

It is a super-2 number, since 2×3287881² = 21620322940322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3287881.

It is not a weakly prime, because it can be changed into another prime (3287887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1643940 + 1643941.

It is an arithmetic number, because the mean of its divisors is an integer number (1643941).

Almost surely, 2^3287881 is an apocalyptic number.

It is an amenable number.

3287881 is a deficient number, since it is larger than the sum of its proper divisors (1).

3287881 is an equidigital number, since it uses as much as digits as its factorization.

3287881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 37.

The square root of 3287881 is about 1813.2514993789. The cubic root of 3287881 is about 148.6980808848.

The spelling of 3287881 in words is "three million, two hundred eighty-seven thousand, eight hundred eighty-one".