9996671 has 4 divisors (see below), whose sum is σ = 10020192. Its totient is φ = 9973152.

The previous prime is 9996667. The next prime is 9996673. The reversal of 9996671 is 1766999.

It is a happy number.

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 9996671 - 2² = 9996667 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 (9996673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11111 + ... + 11976.

It is an arithmetic number, because the mean of its divisors is an integer number (2505048).

Almost surely, 2^9996671 is an apocalyptic number.

9996671 is a deficient number, since it is larger than the sum of its proper divisors (23521).

9996671 is a wasteful number, since it uses less digits than its factorization.

9996671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23520.

The product of its digits is 183708, while the sum is 47.

The square root of 9996671 is about 3161.7512552381. The cubic root of 9996671 is about 215.4195593062.

The spelling of 9996671 in words is "nine million, nine hundred ninety-six thousand, six hundred seventy-one".