9994087247 has 4 divisors (see below), whose sum is σ = 9994442160. Its totient is φ = 9993732336.

The previous prime is 9994087237. The next prime is 9994087283. The reversal of 9994087247 is 7427804999.

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 9994087247 - 2²⁸ = 9725651791 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 (9994087217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131198 + ... + 192875.

It is an arithmetic number, because the mean of its divisors is an integer number (2498610540).

Almost surely, 2^9994087247 is an apocalyptic number.

9994087247 is a deficient number, since it is larger than the sum of its proper divisors (354913).

9994087247 is a wasteful number, since it uses less digits than its factorization.

9994087247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354912.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The square root of 9994087247 is about 99970.4318636266. The cubic root of 9994087247 is about 2154.0099849758.

The spelling of 9994087247 in words is "nine billion, nine hundred ninety-four million, eighty-seven thousand, two hundred forty-seven".