98905 has 8 divisors (see below), whose sum is σ = 120384. Its totient is φ = 78000.

The previous prime is 98899. The next prime is 98909. The reversal of 98905 is 50989.

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

It is not a de Polignac number, because 98905 - 2³ = 98897 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580 + ... + 730.

It is an arithmetic number, because the mean of its divisors is an integer number (15048).

2⁹⁸⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

98905 is a deficient number, since it is larger than the sum of its proper divisors (21479).

98905 is a wasteful number, since it uses less digits than its factorization.

98905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 98905 is about 314.4916533074. The cubic root of 98905 is about 46.2458481786.

The spelling of 98905 in words is "ninety-eight thousand, nine hundred five".