844063013 has 2 divisors, whose sum is σ = 844063014. Its totient is φ = 844063012.

The previous prime is 844063007. The next prime is 844063093. The reversal of 844063013 is 310360448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 659565124 + 184497889 = 25682^2 + 13583^2 .

It is a cyclic number.

It is not a de Polignac number, because 844063013 - 2⁴ = 844062997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (844063093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422031506 + 422031507.

It is an arithmetic number, because the mean of its divisors is an integer number (422031507).

Almost surely, 2^844063013 is an apocalyptic number.

It is an amenable number.

844063013 is a deficient number, since it is larger than the sum of its proper divisors (1).

844063013 is an equidigital number, since it uses as much as digits as its factorization.

844063013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 844063013 is about 29052.7625708813. The cubic root of 844063013 is about 945.0576238389.

The spelling of 844063013 in words is "eight hundred forty-four million, sixty-three thousand, thirteen".