9999995399 has 8 divisors (see below), whose sum is σ = 10021406208. Its totient is φ = 9978602040.

The previous prime is 9999995377. The next prime is 9999995477. The reversal of 9999995399 is 9935999999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9999995399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999995339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2442344 + ... + 2446434.

It is an arithmetic number, because the mean of its divisors is an integer number (1252675776).

Almost surely, 2^9999995399 is an apocalyptic number.

9999995399 is a deficient number, since it is larger than the sum of its proper divisors (21410809).

9999995399 is a wasteful number, since it uses less digits than its factorization.

9999995399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8725.

The product of its digits is 645700815, while the sum is 80.

The square root of 9999995399 is about 99999.9769949974. The cubic root of 9999995399 is about 2154.4343596134.

The spelling of 9999995399 in words is "nine billion, nine hundred ninety-nine million, nine hundred ninety-five thousand, three hundred ninety-nine".