1044966821 has 2 divisors, whose sum is σ = 1044966822. Its totient is φ = 1044966820.

The previous prime is 1044966787. The next prime is 1044966841. The reversal of 1044966821 is 1286694401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 752898721 + 292068100 = 27439^2 + 17090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1044966821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1044966841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522483410 + 522483411.

It is an arithmetic number, because the mean of its divisors is an integer number (522483411).

Almost surely, 2^1044966821 is an apocalyptic number.

It is an amenable number.

1044966821 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044966821 is an equidigital number, since it uses as much as digits as its factorization.

1044966821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1044966821 is about 32325.9465600004. The cubic root of 1044966821 is about 1014.7697216762.

The spelling of 1044966821 in words is "one billion, forty-four million, nine hundred sixty-six thousand, eight hundred twenty-one".