9999994423 has 8 divisors (see below), whose sum is σ = 10287871776. Its totient is φ = 9714211200.

The previous prime is 9999994409. The next prime is 9999994523. The reversal of 9999994423 is 3244999999.

9999994423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9999994423 - 2²⁹ = 9463123511 is a prime.

It is a super-2 number, since 2×9999994423² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999994523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513843 + ... + 532948.

It is an arithmetic number, because the mean of its divisors is an integer number (1285983972).

Almost surely, 2^9999994423 is an apocalyptic number.

9999994423 is a deficient number, since it is larger than the sum of its proper divisors (287877353).

9999994423 is a wasteful number, since it uses less digits than its factorization.

9999994423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047065.

The product of its digits is 51018336, while the sum is 67.

The square root of 9999994423 is about 99999.9721149961. The cubic root of 9999994423 is about 2154.4342895224.

The spelling of 9999994423 in words is "nine billion, nine hundred ninety-nine million, nine hundred ninety-four thousand, four hundred twenty-three".