841208989 has 2 divisors, whose sum is σ = 841208990. Its totient is φ = 841208988.

The previous prime is 841208911. The next prime is 841209001. The reversal of 841208989 is 989802148.

841208989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 567868900 + 273340089 = 23830^2 + 16533^2 .

It is a cyclic number.

It is not a de Polignac number, because 841208989 - 2⁷ = 841208861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (841208089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420604494 + 420604495.

It is an arithmetic number, because the mean of its divisors is an integer number (420604495).

Almost surely, 2^841208989 is an apocalyptic number.

It is an amenable number.

841208989 is a deficient number, since it is larger than the sum of its proper divisors (1).

841208989 is an equidigital number, since it uses as much as digits as its factorization.

841208989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 49.

The square root of 841208989 is about 29003.6030347955. The cubic root of 841208989 is about 943.9912489164.

The spelling of 841208989 in words is "eight hundred forty-one million, two hundred eight thousand, nine hundred eighty-nine".