8641349 has 2 divisors, whose sum is σ = 8641350. Its totient is φ = 8641348.

The previous prime is 8641331. The next prime is 8641351. The reversal of 8641349 is 9431468.

8641349 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., 6630625 + 2010724 = 2575^2 + 1418^2 .

It is a cyclic number.

It is not a de Polignac number, because 8641349 - 2⁸ = 8641093 is a prime.

Together with 8641351, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8641309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4320674 + 4320675.

It is an arithmetic number, because the mean of its divisors is an integer number (4320675).

Almost surely, 2^8641349 is an apocalyptic number.

It is an amenable number.

8641349 is a deficient number, since it is larger than the sum of its proper divisors (1).

8641349 is an equidigital number, since it uses as much as digits as its factorization.

8641349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 8641349 is about 2939.6171519434. The cubic root of 8641349 is about 205.2077924786.

The spelling of 8641349 in words is "eight million, six hundred forty-one thousand, three hundred forty-nine".