99087 has 4 divisors (see below), whose sum is σ = 132120. Its totient is φ = 66056.

The previous prime is 99083. The next prime is 99089. The reversal of 99087 is 78099.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99087 - 2² = 99083 is a prime.

It is a D-number.

99087 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 99087.

It is not an unprimeable number, because it can be changed into a prime (99083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16512 + ... + 16517.

It is an arithmetic number, because the mean of its divisors is an integer number (33030).

2⁹⁹⁰⁸⁷ is an apocalyptic number.

99087 is a deficient number, since it is larger than the sum of its proper divisors (33033).

99087 is a wasteful number, since it uses less digits than its factorization.

99087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33032.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 99087 is about 314.7808761663. The cubic root of 99087 is about 46.2741972238.

The spelling of 99087 in words is "ninety-nine thousand, eighty-seven".