844380353 has 2 divisors, whose sum is σ = 844380354. Its totient is φ = 844380352.

The previous prime is 844380343. The next prime is 844380371. The reversal of 844380353 is 353083448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 596727184 + 247653169 = 24428^2 + 15737^2 .

It is a cyclic number.

It is not a de Polignac number, because 844380353 - 2²⁴ = 827603137 is a prime.

It is not a weakly prime, because it can be changed into another prime (844380323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422190176 + 422190177.

It is an arithmetic number, because the mean of its divisors is an integer number (422190177).

Almost surely, 2^844380353 is an apocalyptic number.

It is an amenable number.

844380353 is a deficient number, since it is larger than the sum of its proper divisors (1).

844380353 is an equidigital number, since it uses as much as digits as its factorization.

844380353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 844380353 is about 29058.2235004138. The cubic root of 844380353 is about 945.1760458859.

The spelling of 844380353 in words is "eight hundred forty-four million, three hundred eighty thousand, three hundred fifty-three".