99718111 has 4 divisors (see below), whose sum is σ = 100686352. Its totient is φ = 98749872.

The previous prime is 99718097. The next prime is 99718121. The reversal of 99718111 is 11181799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11181799 = 251 ⋅44549.

It is a cyclic number.

It is not a de Polignac number, because 99718111 - 2⁷ = 99717983 is a prime.

It is a super-2 number, since 2×99718111² = 19887403322816642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99718121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483966 + ... + 484171.

It is an arithmetic number, because the mean of its divisors is an integer number (25171588).

Almost surely, 2^99718111 is an apocalyptic number.

99718111 is a deficient number, since it is larger than the sum of its proper divisors (968241).

99718111 is a wasteful number, since it uses less digits than its factorization.

99718111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968240.

The product of its digits is 4536, while the sum is 37.

The square root of 99718111 is about 9985.8956032997. The cubic root of 99718111 is about 463.7223352987.

The spelling of 99718111 in words is "ninety-nine million, seven hundred eighteen thousand, one hundred eleven".