844601 has 2 divisors, whose sum is σ = 844602. Its totient is φ = 844600.

The previous prime is 844553. The next prime is 844603. The reversal of 844601 is 106448.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 570025 + 274576 = 755^2 + 524^2 .

It is a cyclic number.

It is not a de Polignac number, because 844601 - 2¹⁸ = 582457 is a prime.

Together with 844603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (844603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422300 + 422301.

It is an arithmetic number, because the mean of its divisors is an integer number (422301).

2⁸⁴⁴⁶⁰¹ is an apocalyptic number.

It is an amenable number.

844601 is a deficient number, since it is larger than the sum of its proper divisors (1).

844601 is an equidigital number, since it uses as much as digits as its factorization.

844601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 844601 is about 919.0217625280. The cubic root of 844601 is about 94.5258367435.

The spelling of 844601 in words is "eight hundred forty-four thousand, six hundred one".