99842811 has 4 divisors (see below), whose sum is σ = 133123752. Its totient is φ = 66561872.

The previous prime is 99842803. The next prime is 99842833. The reversal of 99842811 is 11824899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11824899 = 3 ⋅3941633.

It is a cyclic number.

It is not a de Polignac number, because 99842811 - 2³ = 99842803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99842851) 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, 16640466 + ... + 16640471.

It is an arithmetic number, because the mean of its divisors is an integer number (33280938).

Almost surely, 2^99842811 is an apocalyptic number.

99842811 is a deficient number, since it is larger than the sum of its proper divisors (33280941).

99842811 is a wasteful number, since it uses less digits than its factorization.

99842811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33280940.

The product of its digits is 41472, while the sum is 42.

The square root of 99842811 is about 9992.1374590225. The cubic root of 99842811 is about 463.9155535851.

The spelling of 99842811 in words is "ninety-nine million, eight hundred forty-two thousand, eight hundred eleven".