98823 has 4 divisors (see below), whose sum is σ = 131768. Its totient is φ = 65880.

The previous prime is 98809. The next prime is 98837. The reversal of 98823 is 32889.

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

It is an interprime number because it is at equal distance from previous prime (98809) and next prime (98837).

It is not a de Polignac number, because 98823 - 2⁴ = 98807 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98873) 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, 16468 + ... + 16473.

It is an arithmetic number, because the mean of its divisors is an integer number (32942).

2⁹⁸⁸²³ is an apocalyptic number.

98823 is a deficient number, since it is larger than the sum of its proper divisors (32945).

98823 is a wasteful number, since it uses less digits than its factorization.

98823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32944.

The product of its digits is 3456, while the sum is 30.

The square root of 98823 is about 314.3612571549. The cubic root of 98823 is about 46.2330641669.

It can be divided in two parts, 9882 and 3, that multiplied together give a triangular number (29646 = T₂₄₃).

The spelling of 98823 in words is "ninety-eight thousand, eight hundred twenty-three".