99210000 has 100 divisors (see below), whose sum is σ = 320359952. Its totient is φ = 26448000.

The previous prime is 99209989. The next prime is 99210019. The reversal of 99210000 is 1299.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28347 + ... + 31653.

Almost surely, 2^99210000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160179976).

99210000 is an abundant number, since it is smaller than the sum of its proper divisors (221149952).

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

99210000 is a wasteful number, since it uses less digits than its factorization.

99210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3338 (or 3317 counting only the distinct ones).

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

The square root of 99210000 is about 9960.4216778207. The cubic root of 99210000 is about 462.9333654165.

Adding to 99210000 its reverse (1299), we get a palindrome (99211299).

The spelling of 99210000 in words is "ninety-nine million, two hundred ten thousand".