99718163 has 4 divisors (see below), whose sum is σ = 100070808. Its totient is φ = 99365520.

The previous prime is 99718159. The next prime is 99718187. The reversal of 99718163 is 36181799.

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

It is a cyclic number.

It is not a de Polignac number, because 99718163 - 2² = 99718159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99718123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175898 + ... + 176463.

It is an arithmetic number, because the mean of its divisors is an integer number (25017702).

Almost surely, 2^99718163 is an apocalyptic number.

99718163 is a deficient number, since it is larger than the sum of its proper divisors (352645).

99718163 is a wasteful number, since it uses less digits than its factorization.

99718163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352644.

The product of its digits is 81648, while the sum is 44.

The square root of 99718163 is about 9985.8982069717. The cubic root of 99718163 is about 463.7224159045.

The spelling of 99718163 in words is "ninety-nine million, seven hundred eighteen thousand, one hundred sixty-three".