990707099 has 2 divisors, whose sum is σ = 990707100. Its totient is φ = 990707098.

The previous prime is 990707087. The next prime is 990707117.

990707099 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 990707099 - 2¹² = 990703003 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (990707699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495353549 + 495353550.

It is an arithmetic number, because the mean of its divisors is an integer number (495353550).

Almost surely, 2^990707099 is an apocalyptic number.

990707099 is a deficient number, since it is larger than the sum of its proper divisors (1).

990707099 is an equidigital number, since it uses as much as digits as its factorization.

990707099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 321489, while the sum is 50.

The square root of 990707099 is about 31475.4999801433. The cubic root of 990707099 is about 996.8927211519.

The spelling of 990707099 in words is "nine hundred ninety million, seven hundred seven thousand, ninety-nine".