9930399 has 4 divisors (see below), whose sum is σ = 13240536. Its totient is φ = 6620264.

The previous prime is 9930391. The next prime is 9930419.

9930399 is nontrivially palindromic in base 10.

9930399 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9930399 - 2³ = 9930391 is a prime.

It is a super-2 number, since 2×9930399² = 197225648598402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9930399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9930391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1655064 + ... + 1655069.

It is an arithmetic number, because the mean of its divisors is an integer number (3310134).

Almost surely, 2^9930399 is an apocalyptic number.

9930399 is a deficient number, since it is larger than the sum of its proper divisors (3310137).

9930399 is a wasteful number, since it uses less digits than its factorization.

9930399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310136.

The product of its (nonzero) digits is 59049, while the sum is 42.

The square root of 9930399 is about 3151.2535600932. The cubic root of 9930399 is about 214.9424688325.

The spelling of 9930399 in words is "nine million, nine hundred thirty thousand, three hundred ninety-nine".