9998886 has 8 divisors (see below), whose sum is σ = 19997784. Its totient is φ = 3332960.

The previous prime is 9998867. The next prime is 9998887. The reversal of 9998886 is 6888999.

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

9998886 is an admirable number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998887) 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, 833235 + ... + 833246.

It is an arithmetic number, because the mean of its divisors is an integer number (2499723).

Almost surely, 2^9998886 is an apocalyptic number.

9998886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9998886 is a wasteful number, since it uses less digits than its factorization.

9998886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666486.

The product of its digits is 2239488, while the sum is 57.

The square root of 9998886 is about 3162.1015163970. The cubic root of 9998886 is about 215.4354685719.

The spelling of 9998886 in words is "nine million, nine hundred ninety-eight thousand, eight hundred eighty-six".