99799165 has 8 divisors (see below), whose sum is σ = 119908440. Its totient is φ = 79739712.

The previous prime is 99799151. The next prime is 99799169. The reversal of 99799165 is 56199799.

It can be written as a sum of positive squares in 4 ways, for example, as 34609689 + 65189476 = 5883^2 + 8074^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99799165 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99799169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7894 + ... + 16183.

It is an arithmetic number, because the mean of its divisors is an integer number (14988555).

Almost surely, 2^99799165 is an apocalyptic number.

It is an amenable number.

99799165 is a deficient number, since it is larger than the sum of its proper divisors (20109275).

99799165 is a wasteful number, since it uses less digits than its factorization.

99799165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24911.

The product of its digits is 1377810, while the sum is 55.

The square root of 99799165 is about 9989.9532030936. The cubic root of 99799165 is about 463.8479439454.

The spelling of 99799165 in words is "ninety-nine million, seven hundred ninety-nine thousand, one hundred sixty-five".