99817984 has 40 divisors (see below), whose sum is σ = 227940768. Its totient is φ = 42777600.

The previous prime is 99817979. The next prime is 99817987. The reversal of 99817984 is 48971899.

It is not an unprimeable number, because it can be changed into a prime (99817987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10342 + ... + 17509.

Almost surely, 2^99817984 is an apocalyptic number.

It is an amenable number.

99817984 is an abundant number, since it is smaller than the sum of its proper divisors (128122784).

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

99817984 is an equidigital number, since it uses as much as digits as its factorization.

99817984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27876 (or 27860 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 55.

The square root of 99817984 is about 9990.8950549988. The cubic root of 99817984 is about 463.8770978494.

The spelling of 99817984 in words is "ninety-nine million, eight hundred seventeen thousand, nine hundred eighty-four".