9988814 has 16 divisors (see below), whose sum is σ = 16727040. Its totient is φ = 4434360.

The previous prime is 9988793. The next prime is 9988817. The reversal of 9988814 is 4188899.

9988814 = T₆₆₀ + T₆₆₁ + ... + T₇₀₂.

9988814 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9988817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4334 + ... + 6225.

It is an arithmetic number, because the mean of its divisors is an integer number (1045440).

Almost surely, 2^9988814 is an apocalyptic number.

9988814 is a deficient number, since it is larger than the sum of its proper divisors (6738226).

9988814 is a wasteful number, since it uses less digits than its factorization.

9988814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10615.

The product of its digits is 165888, while the sum is 47.

The square root of 9988814 is about 3160.5085033899. The cubic root of 9988814 is about 215.3631073434.

The spelling of 9988814 in words is "nine million, nine hundred eighty-eight thousand, eight hundred fourteen".