1044001997 has 2 divisors, whose sum is σ = 1044001998. Its totient is φ = 1044001996.

The previous prime is 1044001969. The next prime is 1044002017. The reversal of 1044001997 is 7991004401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1032401161 + 11600836 = 32131^2 + 3406^2 .

It is a cyclic number.

It is not a de Polignac number, because 1044001997 - 2¹⁰ = 1044000973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1044001957) 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, 522000998 + 522000999.

It is an arithmetic number, because the mean of its divisors is an integer number (522000999).

Almost surely, 2^1044001997 is an apocalyptic number.

It is an amenable number.

1044001997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044001997 is an equidigital number, since it uses as much as digits as its factorization.

1044001997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 1044001997 is about 32311.0197455914. The cubic root of 1044001997 is about 1014.4573112260.

The spelling of 1044001997 in words is "one billion, forty-four million, one thousand, nine hundred ninety-seven".