99926784 has 180 divisors, whose sum is σ = 306681760. Its totient is φ = 32348160.

The previous prime is 99926777. The next prime is 99926809. The reversal of 99926784 is 48762999.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (1959552) is a multiple of the sum of its prime factors (168).

It is a self number, because there is not a number n which added to its sum of digits gives 99926784.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 1264857 + ... + 1264935.

Almost surely, 2^99926784 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 99926784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153340880).

99926784 is an abundant number, since it is smaller than the sum of its proper divisors (206754976).

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

99926784 is an equidigital number, since it uses as much as digits as its factorization.

99926784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 145 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 99926784 is about 9996.3385296818. The cubic root of 99926784 is about 464.0455761811.

The spelling of 99926784 in words is "ninety-nine million, nine hundred twenty-six thousand, seven hundred eighty-four".