99213984 has 84 divisors (see below), whose sum is σ = 292926186. Its totient is φ = 33063552.

The previous prime is 99213979. The next prime is 99213997. The reversal of 99213984 is 48931299.

It can be written as a sum of positive squares in only one way, i.e., 96589584 + 2624400 = 9828^2 + 1620^2 .

It is a nude number because it is divisible by every one of its digits.

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 13 ways as a sum of consecutive naturals, for example, 21202 + ... + 25454.

Almost surely, 2^99213984 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 99213984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146463093).

99213984 is an abundant number, since it is smaller than the sum of its proper divisors (193712202).

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

99213984 is an equidigital number, since it uses as much as digits as its factorization.

99213984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281 (or 4258 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 99213984 is about 9960.6216673459. The cubic root of 99213984 is about 462.9395620426.

The spelling of 99213984 in words is "ninety-nine million, two hundred thirteen thousand, nine hundred eighty-four".