9947227499 has 4 divisors (see below), whose sum is σ = 10851520920. Its totient is φ = 9042934080.

The previous prime is 9947227481. The next prime is 9947227541.

9947227499 is nontrivially palindromic in base 10.

9947227499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9947227499 - 2¹⁶ = 9947161963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9947227399) 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 3 ways as a sum of consecutive naturals, for example, 452146694 + ... + 452146715.

It is an arithmetic number, because the mean of its divisors is an integer number (2712880230).

Almost surely, 2^9947227499 is an apocalyptic number.

9947227499 is a deficient number, since it is larger than the sum of its proper divisors (904293421).

9947227499 is a wasteful number, since it uses less digits than its factorization.

9947227499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904293420.

The product of its digits is 20575296, while the sum is 62.

The square root of 9947227499 is about 99735.7884563009. The cubic root of 9947227499 is about 2150.6381735625.

The spelling of 9947227499 in words is "nine billion, nine hundred forty-seven million, two hundred twenty-seven thousand, four hundred ninety-nine".