9902118 has 8 divisors (see below), whose sum is σ = 19804248. Its totient is φ = 3300704.

The previous prime is 9902117. The next prime is 9902119. The reversal of 9902118 is 8112099.

It is an interprime number because it is at equal distance from previous prime (9902117) and next prime (9902119).

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

9902118 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9902117) 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, 825171 + ... + 825182.

It is an arithmetic number, because the mean of its divisors is an integer number (2475531).

Almost surely, 2^9902118 is an apocalyptic number.

9902118 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.

9902118 is a wasteful number, since it uses less digits than its factorization.

9902118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650358.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 9902118 is about 3146.7630988049. The cubic root of 9902118 is about 214.7382283736.

The spelling of 9902118 in words is "nine million, nine hundred two thousand, one hundred eighteen".