98992128 has 128 divisors (see below), whose sum is σ = 283111200. Its totient is φ = 30670848.

The previous prime is 98992123. The next prime is 98992129. The reversal of 98992128 is 82129989.

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

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (98992121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1867750 + ... + 1867802.

Almost surely, 2^98992128 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 98992128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141555600).

98992128 is an abundant number, since it is smaller than the sum of its proper divisors (184119072).

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

98992128 is an equidigital number, since it uses as much as digits as its factorization.

98992128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 77 counting only the distinct ones).

The product of its digits is 186624, while the sum is 48.

The square root of 98992128 is about 9949.4787803181. The cubic root of 98992128 is about 462.5942391846.

The spelling of 98992128 in words is "ninety-eight million, nine hundred ninety-two thousand, one hundred twenty-eight".