990062009 has 2 divisors, whose sum is σ = 990062010. Its totient is φ = 990062008.

The previous prime is 990061993. The next prime is 990062027. The reversal of 990062009 is 900260099.

990062009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 806730409 + 183331600 = 28403^2 + 13540^2 .

It is an emirp because it is prime and its reverse (900260099) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 990062009 - 2⁴ = 990061993 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 990062009.

It is not a weakly prime, because it can be changed into another prime (990062509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495031004 + 495031005.

It is an arithmetic number, because the mean of its divisors is an integer number (495031005).

Almost surely, 2^990062009 is an apocalyptic number.

It is an amenable number.

990062009 is a deficient number, since it is larger than the sum of its proper divisors (1).

990062009 is an equidigital number, since it uses as much as digits as its factorization.

990062009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 990062009 is about 31465.2508173699. The cubic root of 990062009 is about 996.6763016012.

The spelling of 990062009 in words is "nine hundred ninety million, sixty-two thousand, nine".