98817 has 4 divisors (see below), whose sum is σ = 131760. Its totient is φ = 65876.

The previous prime is 98809. The next prime is 98837. The reversal of 98817 is 71889.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 98817 - 2³ = 98809 is a prime.

It is a D-number.

98817 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 98817.

It is not an unprimeable number, because it can be changed into a prime (98807) 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, 16467 + ... + 16472.

It is an arithmetic number, because the mean of its divisors is an integer number (32940).

It is a Proth number, since it is equal to 193 ⋅ 2⁹ + 1 and 193 < 2⁹.

2⁹⁸⁸¹⁷ is an apocalyptic number.

It is an amenable number.

98817 is a deficient number, since it is larger than the sum of its proper divisors (32943).

98817 is a wasteful number, since it uses less digits than its factorization.

98817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32942.

The product of its digits is 4032, while the sum is 33.

The square root of 98817 is about 314.3517138493. The cubic root of 98817 is about 46.2321284738.

The spelling of 98817 in words is "ninety-eight thousand, eight hundred seventeen".