990235049 has 2 divisors, whose sum is σ = 990235050. Its totient is φ = 990235048.

The previous prime is 990234997. The next prime is 990235067. The reversal of 990235049 is 940532099.

990235049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 990235024 + 25 = 31468^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 990235049 - 2⁸ = 990234793 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 990234997 and 990235015.

It is not a weakly prime, because it can be changed into another prime (990235249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495117524 + 495117525.

It is an arithmetic number, because the mean of its divisors is an integer number (495117525).

Almost surely, 2^990235049 is an apocalyptic number.

It is an amenable number.

990235049 is a deficient number, since it is larger than the sum of its proper divisors (1).

990235049 is an equidigital number, since it uses as much as digits as its factorization.

990235049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 990235049 is about 31468.0003972289. Note that the first 3 decimals coincide. The cubic root of 990235049 is about 996.7343635606.

The spelling of 990235049 in words is "nine hundred ninety million, two hundred thirty-five thousand, forty-nine".