99508 has 6 divisors (see below), whose sum is σ = 174146. Its totient is φ = 49752.

The previous prime is 99497. The next prime is 99523. The reversal of 99508 is 80599.

It can be written as a sum of positive squares in only one way, i.e., 51984 + 47524 = 228^2 + 218^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 99508.

It is a congruent 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 as a sum of consecutive naturals, namely, 12435 + ... + 12442.

2⁹⁹⁵⁰⁸ is an apocalyptic number.

It is an amenable number.

99508 is a deficient number, since it is larger than the sum of its proper divisors (74638).

99508 is a wasteful number, since it uses less digits than its factorization.

99508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24881 (or 24879 counting only the distinct ones).

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

The square root of 99508 is about 315.4488865094. The cubic root of 99508 is about 46.3396410967.

The spelling of 99508 in words is "ninety-nine thousand, five hundred eight".