841693009 has 2 divisors, whose sum is σ = 841693010. Its totient is φ = 841693008.

The previous prime is 841693007. The next prime is 841693019. The reversal of 841693009 is 900396148.

841693009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 835036609 + 6656400 = 28897^2 + 2580^2 .

It is a cyclic number.

It is not a de Polignac number, because 841693009 - 2¹ = 841693007 is a prime.

Together with 841693007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (841693007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420846504 + 420846505.

It is an arithmetic number, because the mean of its divisors is an integer number (420846505).

Almost surely, 2^841693009 is an apocalyptic number.

It is an amenable number.

841693009 is a deficient number, since it is larger than the sum of its proper divisors (1).

841693009 is an equidigital number, since it uses as much as digits as its factorization.

841693009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 841693009 is about 29011.9459705825. The cubic root of 841693009 is about 944.1722673652.

It can be divided in two parts, 84169 and 3009, that added together give a palindrome (87178).

The spelling of 841693009 in words is "eight hundred forty-one million, six hundred ninety-three thousand, nine".