9930049893 has 6 divisors (see below), whose sum is σ = 14343405414. Its totient is φ = 6620033256.

The previous prime is 9930049873. The next prime is 9930049897. The reversal of 9930049893 is 3989400399.

9930049893 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9293345604 + 636704289 = 96402^2 + 25233^2 .

It is not a de Polignac number, because 9930049893 - 2⁸ = 9930049637 is a prime.

It is a super-2 number, since 2×9930049893² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9930049897) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 551669430 + ... + 551669447.

It is an arithmetic number, because the mean of its divisors is an integer number (2390567569).

Almost surely, 2^9930049893 is an apocalyptic number.

It is an amenable number.

9930049893 is a deficient number, since it is larger than the sum of its proper divisors (4413355521).

9930049893 is a wasteful number, since it uses less digits than its factorization.

9930049893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103338883 (or 1103338880 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 54.

The square root of 9930049893 is about 99649.6356892488. The cubic root of 9930049893 is about 2149.3995000790.

The spelling of 9930049893 in words is "nine billion, nine hundred thirty million, forty-nine thousand, eight hundred ninety-three".