99990102 has 32 divisors (see below), whose sum is σ = 204317280. Its totient is φ = 32613120.

The previous prime is 99990091. The next prime is 99990113. The reversal of 99990102 is 20109999.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99990091) and next prime (99990113).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83218 + ... + 84410.

It is an arithmetic number, because the mean of its divisors is an integer number (6384915).

Almost surely, 2^99990102 is an apocalyptic number.

99990102 is an abundant number, since it is smaller than the sum of its proper divisors (104327178).

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

99990102 is a wasteful number, since it uses less digits than its factorization.

99990102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488.

The product of its (nonzero) digits is 13122, while the sum is 39.

The square root of 99990102 is about 9999.5050877531. The cubic root of 99990102 is about 464.1435687072.

The spelling of 99990102 in words is "ninety-nine million, nine hundred ninety thousand, one hundred two".