98723 has 4 divisors (see below), whose sum is σ = 99360. Its totient is φ = 98088.

The previous prime is 98717. The next prime is 98729. The reversal of 98723 is 32789.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (98717) and next prime (98729).

It is a cyclic number.

It is not a de Polignac number, because 98723 - 2⁸ = 98467 is a prime.

It is a d-powerful number, because it can be written as 9⁴ + 8⁵ + 7³ + 2 + 3¹⁰ .

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98729) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 86 + ... + 452.

It is an arithmetic number, because the mean of its divisors is an integer number (24840).

2⁹⁸⁷²³ is an apocalyptic number.

98723 is a deficient number, since it is larger than the sum of its proper divisors (637).

98723 is a wasteful number, since it uses less digits than its factorization.

98723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its digits is 3024, while the sum is 29.

The square root of 98723 is about 314.2021642192. The cubic root of 98723 is about 46.2174643343.

The spelling of 98723 in words is "ninety-eight thousand, seven hundred twenty-three".