8384641 has 2 divisors, whose sum is σ = 8384642. Its totient is φ = 8384640.

The previous prime is 8384639. The next prime is 8384671. The reversal of 8384641 is 1464838.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5130225 + 3254416 = 2265^2 + 1804^2 .

It is a cyclic number.

It is not a de Polignac number, because 8384641 - 2¹ = 8384639 is a prime.

Together with 8384639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 8384597 and 8384606.

It is not a weakly prime, because it can be changed into another prime (8384611) 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, 4192320 + 4192321.

It is an arithmetic number, because the mean of its divisors is an integer number (4192321).

Almost surely, 2^8384641 is an apocalyptic number.

It is an amenable number.

8384641 is a deficient number, since it is larger than the sum of its proper divisors (1).

8384641 is an equidigital number, since it uses as much as digits as its factorization.

8384641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 34.

The square root of 8384641 is about 2895.6244576947. The cubic root of 8384641 is about 203.1553002846.

It can be divided in two parts, 8384 and 641, that added together give a square (9025 = 95²).

The spelling of 8384641 in words is "eight million, three hundred eighty-four thousand, six hundred forty-one".