844949461 has 2 divisors, whose sum is σ = 844949462. Its totient is φ = 844949460.

The previous prime is 844949431. The next prime is 844949507. The reversal of 844949461 is 164949448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 670551025 + 174398436 = 25895^2 + 13206^2 .

It is a cyclic number.

It is not a de Polignac number, because 844949461 - 2⁷ = 844949333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (844949431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422474730 + 422474731.

It is an arithmetic number, because the mean of its divisors is an integer number (422474731).

Almost surely, 2^844949461 is an apocalyptic number.

It is an amenable number.

844949461 is a deficient number, since it is larger than the sum of its proper divisors (1).

844949461 is an equidigital number, since it uses as much as digits as its factorization.

844949461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 49.

The square root of 844949461 is about 29068.0143972718. The cubic root of 844949461 is about 945.3883461222.

The spelling of 844949461 in words is "eight hundred forty-four million, nine hundred forty-nine thousand, four hundred sixty-one".