99718 has 8 divisors (see below), whose sum is σ = 151848. Its totient is φ = 49104.

The previous prime is 99713. The next prime is 99719. The reversal of 99718 is 81799.

99718 is nontrivially palindromic in base 3.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99713) 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, 196 + ... + 487.

It is an arithmetic number, because the mean of its divisors is an integer number (18981).

2⁹⁹⁷¹⁸ is an apocalyptic number.

99718 is a deficient number, since it is larger than the sum of its proper divisors (52130).

99718 is a wasteful number, since it uses less digits than its factorization.

99718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758.

The product of its digits is 4536, while the sum is 34.

The square root of 99718 is about 315.7815700765. The cubic root of 99718 is about 46.3722163236.

The spelling of 99718 in words is "ninety-nine thousand, seven hundred eighteen".