99858911 has 2 divisors, whose sum is σ = 99858912. Its totient is φ = 99858910.

The previous prime is 99858859. The next prime is 99858949. The reversal of 99858911 is 11985899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99858911 - 2¹⁰ = 99857887 is a prime.

It is a super-2 number, since 2×99858911² = 19943604212211842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99858911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99858961) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49929455 + 49929456.

It is an arithmetic number, because the mean of its divisors is an integer number (49929456).

Almost surely, 2^99858911 is an apocalyptic number.

99858911 is a deficient number, since it is larger than the sum of its proper divisors (1).

99858911 is an equidigital number, since it uses as much as digits as its factorization.

99858911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 50.

The square root of 99858911 is about 9992.9430599799. The cubic root of 99858911 is about 463.9404882429.

The spelling of 99858911 in words is "ninety-nine million, eight hundred fifty-eight thousand, nine hundred eleven".