9999930 has 16 divisors (see below), whose sum is σ = 23999904. Its totient is φ = 2666640.

The previous prime is 9999929. The next prime is 9999931. The reversal of 9999930 is 399999.

It is an interprime number because it is at equal distance from previous prime (9999929) and next prime (9999931).

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 9999930.

It is not an unprimeable number, because it can be changed into a prime (9999931) 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 in 7 ways as a sum of consecutive naturals, for example, 166636 + ... + 166695.

It is an arithmetic number, because the mean of its divisors is an integer number (1499994).

Almost surely, 2^9999930 is an apocalyptic number.

9999930 is an abundant number, since it is smaller than the sum of its proper divisors (13999974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9999930 is a wasteful number, since it uses less digits than its factorization.

9999930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333341.

The product of its (nonzero) digits is 177147, while the sum is 48.

The square root of 9999930 is about 3162.2665921772. The cubic root of 9999930 is about 215.4429663006.

The spelling of 9999930 in words is "nine million, nine hundred ninety-nine thousand, nine hundred thirty".