99984520 has 16 divisors (see below), whose sum is σ = 224965260. Its totient is φ = 39993792.

The previous prime is 99984491. The next prime is 99984529. The reversal of 99984520 is 2548999.

It can be written as a sum of positive squares in 2 ways, for example, as 97101316 + 2883204 = 9854^2 + 1698^2 .

It is not an unprimeable number, because it can be changed into a prime (99984529) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1249767 + ... + 1249846.

Almost surely, 2^99984520 is an apocalyptic number.

It is an amenable number.

99984520 is an abundant number, since it is smaller than the sum of its proper divisors (124980740).

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

99984520 is a wasteful number, since it uses less digits than its factorization.

99984520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499624 (or 2499620 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 99984520 is about 9999.2259700439. The cubic root of 99984520 is about 464.1349315269.

The spelling of 99984520 in words is "ninety-nine million, nine hundred eighty-four thousand, five hundred twenty".