99881305 has 8 divisors (see below), whose sum is σ = 119939400. Its totient is φ = 79850496.

The previous prime is 99881293. The next prime is 99881317. The reversal of 99881305 is 50318899.

It is an interprime number because it is at equal distance from previous prime (99881293) and next prime (99881317).

It can be written as a sum of positive squares in 4 ways, for example, as 898704 + 98982601 = 948^2 + 9949^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 99881305 - 2²³ = 91492697 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2361 + ... + 14329.

It is an arithmetic number, because the mean of its divisors is an integer number (14992425).

Almost surely, 2^99881305 is an apocalyptic number.

It is an amenable number.

99881305 is a deficient number, since it is larger than the sum of its proper divisors (20058095).

99881305 is a wasteful number, since it uses less digits than its factorization.

99881305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13643.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 99881305 is about 9994.0634878912. The cubic root of 99881305 is about 463.9751661922.

The spelling of 99881305 in words is "ninety-nine million, eight hundred eighty-one thousand, three hundred five".