844825249 has 2 divisors, whose sum is σ = 844825250. Its totient is φ = 844825248.

The previous prime is 844825243. The next prime is 844825271. The reversal of 844825249 is 942528448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 810427024 + 34398225 = 28468^2 + 5865^2 .

It is a cyclic number.

It is not a de Polignac number, because 844825249 - 2²³ = 836436641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 844825199 and 844825208.

It is not a weakly prime, because it can be changed into another prime (844825243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422412624 + 422412625.

It is an arithmetic number, because the mean of its divisors is an integer number (422412625).

Almost surely, 2^844825249 is an apocalyptic number.

It is an amenable number.

844825249 is a deficient number, since it is larger than the sum of its proper divisors (1).

844825249 is an equidigital number, since it uses as much as digits as its factorization.

844825249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 737280, while the sum is 46.

The square root of 844825249 is about 29065.8777434985. The cubic root of 844825249 is about 945.3420181711.

The spelling of 844825249 in words is "eight hundred forty-four million, eight hundred twenty-five thousand, two hundred forty-nine".