9996998 has 8 divisors (see below), whose sum is σ = 16358760. Its totient is φ = 4544080.

The previous prime is 9996991. The next prime is 9997007. The reversal of 9996998 is 8996999.

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

It is a Curzon 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227183 + ... + 227226.

It is an arithmetic number, because the mean of its divisors is an integer number (2044845).

Almost surely, 2^9996998 is an apocalyptic number.

9996998 is a deficient number, since it is larger than the sum of its proper divisors (6361762).

9996998 is a wasteful number, since it uses less digits than its factorization.

9996998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454422.

The product of its digits is 2834352, while the sum is 59.

The square root of 9996998 is about 3161.8029666632. The cubic root of 9996998 is about 215.4219081357.

Subtracting from 9996998 its reverse (8996999), we obtain a palindrome (999999).

It can be divided in two parts, 999 and 6998, that added together give a palindrome (7997).

The spelling of 9996998 in words is "nine million, nine hundred ninety-six thousand, nine hundred ninety-eight".