841384405 has 4 divisors (see below), whose sum is σ = 1009661292. Its totient is φ = 673107520.

The previous prime is 841384343. The next prime is 841384409. The reversal of 841384405 is 504483148.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 568440964 + 272943441 = 23842^2 + 16521^2 .

It is not a de Polignac number, because 841384405 - 2¹³ = 841376213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (841384409) 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 in 3 ways as a sum of consecutive naturals, for example, 84138436 + ... + 84138445.

It is an arithmetic number, because the mean of its divisors is an integer number (252415323).

Almost surely, 2^841384405 is an apocalyptic number.

It is an amenable number.

841384405 is a deficient number, since it is larger than the sum of its proper divisors (168276887).

841384405 is a wasteful number, since it uses less digits than its factorization.

841384405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168276886.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 841384405 is about 29006.6269152413. The cubic root of 841384405 is about 944.0568606975.

The spelling of 841384405 in words is "eight hundred forty-one million, three hundred eighty-four thousand, four hundred five".