1289411 has 2 divisors, whose sum is σ = 1289412. Its totient is φ = 1289410.

The previous prime is 1289401. The next prime is 1289423. The reversal of 1289411 is 1149821.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1289411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1289401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644705 + 644706.

It is an arithmetic number, because the mean of its divisors is an integer number (644706).

2^1289411 is an apocalyptic number.

1289411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1289411 is an equidigital number, since it uses as much as digits as its factorization.

1289411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 26.

The square root of 1289411 is about 1135.5223467638. The cubic root of 1289411 is about 108.8421529192.

The spelling of 1289411 in words is "one million, two hundred eighty-nine thousand, four hundred eleven".