9999999433 has 4 divisors (see below), whose sum is σ = 10002736080. Its totient is φ = 9997262788.

The previous prime is 9999999379. The next prime is 9999999479. The reversal of 9999999433 is 3349999999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3349999999 = 59 ⋅56779661.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9999999433 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (9999999833) 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, 1362835 + ... + 1370152.

It is an arithmetic number, because the mean of its divisors is an integer number (2500684020).

Almost surely, 2^9999999433 is an apocalyptic number.

It is an amenable number.

9999999433 is a deficient number, since it is larger than the sum of its proper divisors (2736647).

9999999433 is a wasteful number, since it uses less digits than its factorization.

9999999433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736646.

The product of its digits is 172186884, while the sum is 73.

The square root of 9999999433 is about 99999.9971650000. The cubic root of 9999999433 is about 2154.4346493131.

The spelling of 9999999433 in words is "nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, four hundred thirty-three".