9900102 has 16 divisors (see below), whose sum is σ = 20842560. Its totient is φ = 3126312.

The previous prime is 9900101. The next prime is 9900113. The reversal of 9900102 is 2010099.

It is a happy number.

It is a super-2 number, since 2×9900102² = 196024039220808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9900101) 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, 43308 + ... + 43535.

It is an arithmetic number, because the mean of its divisors is an integer number (1302660).

Almost surely, 2^9900102 is an apocalyptic number.

9900102 is an abundant number, since it is smaller than the sum of its proper divisors (10942458).

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

9900102 is a wasteful number, since it uses less digits than its factorization.

9900102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86867.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 9900102 is about 3146.4427533327. The cubic root of 9900102 is about 214.7236543316.

The spelling of 9900102 in words is "nine million, nine hundred thousand, one hundred two".