99681716 has 12 divisors (see below), whose sum is σ = 175093380. Its totient is φ = 49655040.

The previous prime is 99681683. The next prime is 99681721. The reversal of 99681716 is 61718699.

It can be written as a sum of positive squares in 2 ways, for example, as 57820816 + 41860900 = 7604^2 + 6470^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 45245 + ... + 47396.

It is an arithmetic number, because the mean of its divisors is an integer number (14591115).

Almost surely, 2^99681716 is an apocalyptic number.

It is an amenable number.

99681716 is a deficient number, since it is larger than the sum of its proper divisors (75411664).

99681716 is a wasteful number, since it uses less digits than its factorization.

99681716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92914 (or 92912 counting only the distinct ones).

The product of its digits is 163296, while the sum is 47.

The square root of 99681716 is about 9984.0731167194. The cubic root of 99681716 is about 463.6659121545.

The spelling of 99681716 in words is "ninety-nine million, six hundred eighty-one thousand, seven hundred sixteen".