9998307 has 24 divisors (see below), whose sum is σ = 16443648. Its totient is φ = 5794800.

The previous prime is 9998281. The next prime is 9998309. The reversal of 9998307 is 7038999.

It is a happy number.

It is not a de Polignac number, because 9998307 - 2⁷ = 9998179 is a prime.

It is a super-2 number, since 2×9998307² = 199932285732498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9998309) 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 23 ways as a sum of consecutive naturals, for example, 82 + ... + 4472.

It is an arithmetic number, because the mean of its divisors is an integer number (685152).

Almost surely, 2^9998307 is an apocalyptic number.

9998307 is a deficient number, since it is larger than the sum of its proper divisors (6445341).

9998307 is a wasteful number, since it uses less digits than its factorization.

9998307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4431 (or 4428 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 9998307 is about 3162.0099620336. The cubic root of 9998307 is about 215.4313101239.

The spelling of 9998307 in words is "nine million, nine hundred ninety-eight thousand, three hundred seven".