99856159 has 4 divisors (see below), whose sum is σ = 107537416. Its totient is φ = 92174904.

The previous prime is 99856151. The next prime is 99856171. The reversal of 99856159 is 95165899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95165899 = 53 ⋅1795583.

It is a cyclic number.

It is not a de Polignac number, because 99856159 - 2³ = 99856151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99856151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3840609 + ... + 3840634.

It is an arithmetic number, because the mean of its divisors is an integer number (26884354).

Almost surely, 2^99856159 is an apocalyptic number.

99856159 is a deficient number, since it is larger than the sum of its proper divisors (7681257).

99856159 is a wasteful number, since it uses less digits than its factorization.

99856159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7681256.

The product of its digits is 874800, while the sum is 52.

The square root of 99856159 is about 9992.8053618591. The cubic root of 99856159 is about 463.9362263099.

The spelling of 99856159 in words is "ninety-nine million, eight hundred fifty-six thousand, one hundred fifty-nine".