99851844 has 48 divisors (see below), whose sum is σ = 238049280. Its totient is φ = 32568480.

The previous prime is 99851839. The next prime is 99851849. The reversal of 99851844 is 44815899.

It is an interprime number because it is at equal distance from previous prime (99851839) and next prime (99851849).

Its product of digits (414720) is a multiple of the sum of its prime factors (960).

It is a junction number, because it is equal to n+sod(n) for n = 99851793 and 99851802.

It is not an unprimeable number, because it can be changed into a prime (99851849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138517 + ... + 139235.

It is an arithmetic number, because the mean of its divisors is an integer number (4959360).

Almost surely, 2^99851844 is an apocalyptic number.

It is an amenable number.

99851844 is an abundant number, since it is smaller than the sum of its proper divisors (138197436).

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

99851844 is a wasteful number, since it uses less digits than its factorization.

99851844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960 (or 958 counting only the distinct ones).

The product of its digits is 414720, while the sum is 48.

The square root of 99851844 is about 9992.5894541905. The cubic root of 99851844 is about 463.9295436520.

The spelling of 99851844 in words is "ninety-nine million, eight hundred fifty-one thousand, eight hundred forty-four".