99505 has 8 divisors (see below), whose sum is σ = 136512. Its totient is φ = 68208.

The previous prime is 99497. The next prime is 99523. The reversal of 99505 is 50599.

99505 = T₁₉₇ + T₁₉₈ + ... + T₂₀₁.

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

It is not a de Polignac number, because 99505 - 2³ = 99497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1387 + ... + 1456.

It is an arithmetic number, because the mean of its divisors is an integer number (17064).

2⁹⁹⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

99505 is a deficient number, since it is larger than the sum of its proper divisors (37007).

99505 is a wasteful number, since it uses less digits than its factorization.

99505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855.

The product of its (nonzero) digits is 2025, while the sum is 28.

The square root of 99505 is about 315.4441313450. Note that the first 3 decimals coincide. The cubic root of 99505 is about 46.3391754045.

The spelling of 99505 in words is "ninety-nine thousand, five hundred five".