9996947 has 4 divisors (see below), whose sum is σ = 10209696. Its totient is φ = 9784200.

The previous prime is 9996937. The next prime is 9996949. The reversal of 9996947 is 7496999.

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 9996947 - 2²⁰ = 8948371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9996949) 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, 106304 + ... + 106397.

It is an arithmetic number, because the mean of its divisors is an integer number (2552424).

Almost surely, 2^9996947 is an apocalyptic number.

9996947 is a deficient number, since it is larger than the sum of its proper divisors (212749).

9996947 is a wasteful number, since it uses less digits than its factorization.

9996947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212748.

The product of its digits is 1102248, while the sum is 53.

The square root of 9996947 is about 3161.7949016342. The cubic root of 9996947 is about 215.4215418079.

The spelling of 9996947 in words is "nine million, nine hundred ninety-six thousand, nine hundred forty-seven".