9910998 has 24 divisors (see below), whose sum is σ = 22270248. Its totient is φ = 3303504.

The previous prime is 9910993. The next prime is 9911009. The reversal of 9910998 is 8990199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9910993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9711 + ... + 10682.

It is an arithmetic number, because the mean of its divisors is an integer number (927927).

Almost surely, 2^9910998 is an apocalyptic number.

9910998 is an abundant number, since it is smaller than the sum of its proper divisors (12359250).

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

9910998 is a wasteful number, since it uses less digits than its factorization.

9910998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20410 (or 20398 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The square root of 9910998 is about 3148.1737563229. The cubic root of 9910998 is about 214.8024000231.

The spelling of 9910998 in words is "nine million, nine hundred ten thousand, nine hundred ninety-eight".