3280889 has 2 divisors, whose sum is σ = 3280890. Its totient is φ = 3280888.

The previous prime is 3280877. The next prime is 3280897. The reversal of 3280889 is 9880823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2199289 + 1081600 = 1483^2 + 1040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3280889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3280289) 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 as a sum of consecutive naturals, namely, 1640444 + 1640445.

It is an arithmetic number, because the mean of its divisors is an integer number (1640445).

Almost surely, 2^3280889 is an apocalyptic number.

It is an amenable number.

3280889 is a deficient number, since it is larger than the sum of its proper divisors (1).

3280889 is an equidigital number, since it uses as much as digits as its factorization.

3280889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 3280889 is about 1811.3224450660. The cubic root of 3280889 is about 148.5925990806.

The spelling of 3280889 in words is "three million, two hundred eighty thousand, eight hundred eighty-nine".