999963941 has 2 divisors, whose sum is σ = 999963942. Its totient is φ = 999963940.

The previous prime is 999963917. The next prime is 999963947. The reversal of 999963941 is 149369999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 925072225 + 74891716 = 30415^2 + 8654^2 .

It is a cyclic number.

It is not a de Polignac number, because 999963941 - 2²² = 995769637 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 (999963947) 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, 499981970 + 499981971.

It is an arithmetic number, because the mean of its divisors is an integer number (499981971).

Almost surely, 2^999963941 is an apocalyptic number.

It is an amenable number.

999963941 is a deficient number, since it is larger than the sum of its proper divisors (1).

999963941 is an equidigital number, since it uses as much as digits as its factorization.

999963941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4251528, while the sum is 59.

The square root of 999963941 is about 31622.2064536933. The cubic root of 999963941 is about 999.9879801889.

The spelling of 999963941 in words is "nine hundred ninety-nine million, nine hundred sixty-three thousand, nine hundred forty-one".