99974784 has 128 divisors (see below), whose sum is σ = 326954880. Its totient is φ = 26357760.

The previous prime is 99974779. The next prime is 99974821. The reversal of 99974784 is 48747999.

It is a tau number, because it is divible by the number of its divisors (128).

It is a zygodrome in base 4.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33514 + ... + 36374.

It is an arithmetic number, because the mean of its divisors is an integer number (2554335).

Almost surely, 2^99974784 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 99974784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163477440).

99974784 is an abundant number, since it is smaller than the sum of its proper divisors (226980096).

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

99974784 is a wasteful number, since it uses less digits than its factorization.

99974784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898 (or 2886 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 57.

The square root of 99974784 is about 9998.7391205091. The cubic root of 99974784 is about 464.1198659802.

The spelling of 99974784 in words is "ninety-nine million, nine hundred seventy-four thousand, seven hundred eighty-four".