99841 has 8 divisors (see below), whose sum is σ = 120960. Its totient is φ = 80448.

The previous prime is 99839. The next prime is 99859. The reversal of 99841 is 14899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99841 - 2¹ = 99839 is a prime.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (99871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301 + ... + 538.

It is an arithmetic number, because the mean of its divisors is an integer number (15120).

It is a Proth number, since it is equal to 195 ⋅ 2⁹ + 1 and 195 < 2⁹.

2⁹⁹⁸⁴¹ is an apocalyptic number.

It is an amenable number.

99841 is a deficient number, since it is larger than the sum of its proper divisors (21119).

99841 is a wasteful number, since it uses less digits than its factorization.

99841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863.

The product of its digits is 2592, while the sum is 31.

The square root of 99841 is about 315.9762649314. The cubic root of 99841 is about 46.3912748656.

The spelling of 99841 in words is "ninety-nine thousand, eight hundred forty-one".