99827 has 8 divisors (see below), whose sum is σ = 122976. Its totient is φ = 78912.

The previous prime is 99823. The next prime is 99829. The reversal of 99827 is 72899.

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 99827 - 2² = 99823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458 + ... + 639.

It is an arithmetic number, because the mean of its divisors is an integer number (15372).

2⁹⁹⁸²⁷ is an apocalyptic number.

99827 is a deficient number, since it is larger than the sum of its proper divisors (23149).

99827 is a wasteful number, since it uses less digits than its factorization.

99827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117.

The product of its digits is 9072, while the sum is 35.

The square root of 99827 is about 315.9541105920. The cubic root of 99827 is about 46.3891063903.

The spelling of 99827 in words is "ninety-nine thousand, eight hundred twenty-seven".