99984331 has 16 divisors (see below), whose sum is σ = 106748928. Its totient is φ = 93492000.

The previous prime is 99984329. The next prime is 99984337. The reversal of 99984331 is 13348999.

It is a cyclic number.

It is not a de Polignac number, because 99984331 - 2¹ = 99984329 is a prime.

It is a super-2 number, since 2×99984331² = 19993732891035122, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (99984337) 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, 142281 + ... + 142981.

It is an arithmetic number, because the mean of its divisors is an integer number (6671808).

Almost surely, 2^99984331 is an apocalyptic number.

99984331 is a deficient number, since it is larger than the sum of its proper divisors (6764597).

99984331 is a wasteful number, since it uses less digits than its factorization.

99984331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882.

The product of its digits is 209952, while the sum is 46.

The square root of 99984331 is about 9999.2165193079. The cubic root of 99984331 is about 464.1346390765.

The spelling of 99984331 in words is "ninety-nine million, nine hundred eighty-four thousand, three hundred thirty-one".