9999263 has 8 divisors (see below), whose sum is σ = 10771200. Its totient is φ = 9251928.

The previous prime is 9999233. The next prime is 9999271. The reversal of 9999263 is 3629999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9999263 - 2¹⁰ = 9998239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5303 + ... + 6936.

It is an arithmetic number, because the mean of its divisors is an integer number (1346400).

Almost surely, 2^9999263 is an apocalyptic number.

9999263 is a deficient number, since it is larger than the sum of its proper divisors (771937).

9999263 is a wasteful number, since it uses less digits than its factorization.

9999263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12301.

The product of its digits is 236196, while the sum is 47.

The square root of 9999263 is about 3162.1611280895. The cubic root of 9999263 is about 215.4381761453.

The spelling of 9999263 in words is "nine million, nine hundred ninety-nine thousand, two hundred sixty-three".