844485461 has 2 divisors, whose sum is σ = 844485462. Its totient is φ = 844485460.

The previous prime is 844485451. The next prime is 844485491. The reversal of 844485461 is 164584448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 789947236 + 54538225 = 28106^2 + 7385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-844485461 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 (844485401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422242730 + 422242731.

It is an arithmetic number, because the mean of its divisors is an integer number (422242731).

Almost surely, 2^844485461 is an apocalyptic number.

It is an amenable number.

844485461 is a deficient number, since it is larger than the sum of its proper divisors (1).

844485461 is an equidigital number, since it uses as much as digits as its factorization.

844485461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 491520, while the sum is 44.

The square root of 844485461 is about 29060.0320199411. The cubic root of 844485461 is about 945.2152625895.

The spelling of 844485461 in words is "eight hundred forty-four million, four hundred eighty-five thousand, four hundred sixty-one".