9999305 has 8 divisors (see below), whose sum is σ = 12025800. Its totient is φ = 7981696.

The previous prime is 9999299. The next prime is 9999317. The reversal of 9999305 is 5039999.

It can be written as a sum of positive squares in 4 ways, for example, as 824464 + 9174841 = 908^2 + 3029^2 .

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 9999305 - 2⁴ = 9999289 is a prime.

It is a super-2 number, since 2×9999305² = 199972200966050, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 581 + ... + 4509.

It is an arithmetic number, because the mean of its divisors is an integer number (1503225).

Almost surely, 2^9999305 is an apocalyptic number.

It is an amenable number.

9999305 is a deficient number, since it is larger than the sum of its proper divisors (2026495).

9999305 is a wasteful number, since it uses less digits than its factorization.

9999305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4443.

The product of its (nonzero) digits is 98415, while the sum is 44.

The square root of 9999305 is about 3162.1677691103. The cubic root of 9999305 is about 215.4384777805.

The spelling of 9999305 in words is "nine million, nine hundred ninety-nine thousand, three hundred five".