1000998941 has 2 divisors, whose sum is σ = 1000998942. Its totient is φ = 1000998940.

The previous prime is 1000998937. The next prime is 1000998953. The reversal of 1000998941 is 1498990001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 561216100 + 439782841 = 23690^2 + 20971^2 .

It is an emirp because it is prime and its reverse (1498990001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000998941 - 2² = 1000998937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000998991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500499470 + 500499471.

It is an arithmetic number, because the mean of its divisors is an integer number (500499471).

Almost surely, 2^1000998941 is an apocalyptic number.

It is an amenable number.

1000998941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000998941 is an equidigital number, since it uses as much as digits as its factorization.

1000998941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 1000998941 is about 31638.5673032140. The cubic root of 1000998941 is about 1000.3328695189.

The spelling of 1000998941 in words is "one billion, nine hundred ninety-eight thousand, nine hundred forty-one".