99711913 has 6 divisors (see below), whose sum is σ = 115991466. Its totient is φ = 85467312.

The previous prime is 99711907. The next prime is 99711917. The reversal of 99711913 is 31911799.

It can be written as a sum of positive squares in only one way, i.e., 85895824 + 13816089 = 9268^2 + 3717^2 .

It is not a de Polignac number, because 99711913 - 2⁹ = 99711401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99711917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1017420 + ... + 1017517.

It is an arithmetic number, because the mean of its divisors is an integer number (19331911).

Almost surely, 2^99711913 is an apocalyptic number.

It is an amenable number.

99711913 is a deficient number, since it is larger than the sum of its proper divisors (16279553).

99711913 is a wasteful number, since it uses less digits than its factorization.

99711913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034951 (or 2034944 counting only the distinct ones).

The product of its digits is 15309, while the sum is 40.

The square root of 99711913 is about 9985.5852607646. The cubic root of 99711913 is about 463.7127275135.

The spelling of 99711913 in words is "ninety-nine million, seven hundred eleven thousand, nine hundred thirteen".