99330621 has 16 divisors (see below), whose sum is σ = 142813440. Its totient is φ = 61047360.

The previous prime is 99330611. The next prime is 99330641. The reversal of 99330621 is 12603399.

It is not a de Polignac number, because 99330621 - 2¹⁸ = 99068477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99330611) by changing a digit.

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, 46975 + ... + 49043.

It is an arithmetic number, because the mean of its divisors is an integer number (8925840).

Almost surely, 2^99330621 is an apocalyptic number.

It is an amenable number.

99330621 is a deficient number, since it is larger than the sum of its proper divisors (43482819).

99330621 is a wasteful number, since it uses less digits than its factorization.

99330621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3316.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 99330621 is about 9966.4748532267. The cubic root of 99330621 is about 463.1209032003.

The spelling of 99330621 in words is "ninety-nine million, three hundred thirty thousand, six hundred twenty-one".