99865163 has 4 divisors (see below), whose sum is σ = 99905328. Its totient is φ = 99825000.

The previous prime is 99865147. The next prime is 99865187. The reversal of 99865163 is 36156899.

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 99865163 - 2⁴ = 99865147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99865193) 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, 16088 + ... + 21413.

It is an arithmetic number, because the mean of its divisors is an integer number (24976332).

Almost surely, 2^99865163 is an apocalyptic number.

99865163 is a deficient number, since it is larger than the sum of its proper divisors (40165).

99865163 is a wasteful number, since it uses less digits than its factorization.

99865163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40164.

The product of its digits is 349920, while the sum is 47.

The square root of 99865163 is about 9993.2558758395. The cubic root of 99865163 is about 463.9501702211.

The spelling of 99865163 in words is "ninety-nine million, eight hundred sixty-five thousand, one hundred sixty-three".