9990733 has 2 divisors, whose sum is σ = 9990734.
Its totient is φ = 9990732.
The previous prime is 9990731. The next prime is 9990737. The reversal of 9990733 is 3370999.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 9597604 + 393129 = 3098^2 + 627^2
It is a cyclic number.
It is not a de Polignac number, because 9990733 - 21 = 9990731 is a prime.
Together with 9990731, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (9990731) 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, 4995366 + 4995367.
It is an arithmetic number, because the mean of its divisors is an integer number (4995367).
Almost surely, 29990733 is an apocalyptic number.
It is an amenable number.
9990733 is a deficient number, since it is larger than the sum of its proper divisors (1).
9990733 is an equidigital number, since it uses as much as digits as its factorization.
9990733 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 45927, while the sum is 40.
The square root of 9990733 is about 3160.8120791974.
The cubic root of 9990733 is about 215.3768979476.
The spelling of 9990733 in words is "nine million, nine hundred ninety thousand, seven hundred thirty-three".