9996999 has 8 divisors (see below), whose sum is σ = 13344000. Its totient is φ = 6657336.

The previous prime is 9996991. The next prime is 9997007.

9996999 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (9996991) and next prime (9997007).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9996999 - 2³ = 9996991 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9996991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4002 + ... + 6000.

It is an arithmetic number, because the mean of its divisors is an integer number (1668000).

Almost surely, 2^9996999 is an apocalyptic number.

9996999 is a deficient number, since it is larger than the sum of its proper divisors (3347001).

9996999 is a wasteful number, since it uses less digits than its factorization.

9996999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669.

The product of its digits is 3188646, while the sum is 60.

The square root of 9996999 is about 3161.8031248008. The cubic root of 9996999 is about 215.4219153186.

The spelling of 9996999 in words is "nine million, nine hundred ninety-six thousand, nine hundred ninety-nine".