9990833 has 2 divisors, whose sum is σ = 9990834.
Its totient is φ = 9990832.
The previous prime is 9990821. The next prime is 9990847. The reversal of 9990833 is 3380999.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 9591409 + 399424 = 3097^2 + 632^2
It is an emirp because it is prime and its reverse (3380999) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 9990833 - 24 = 9990817 is a prime.
It is not a weakly prime, because it can be changed into another prime (9990803) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4995416 + 4995417.
It is an arithmetic number, because the mean of its divisors is an integer number (4995417).
Almost surely, 29990833 is an apocalyptic number.
It is an amenable number.
9990833 is a deficient number, since it is larger than the sum of its proper divisors (1).
9990833 is an equidigital number, since it uses as much as digits as its factorization.
9990833 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 52488, while the sum is 41.
The square root of 9990833 is about 3160.8278978774.
The cubic root of 9990833 is about 215.3776165341.
The spelling of 9990833 in words is "nine million, nine hundred ninety thousand, eight hundred thirty-three".