99289318 has 4 divisors (see below), whose sum is σ = 148933980. Its totient is φ = 49644658.

The previous prime is 99289313. The next prime is 99289339. The reversal of 99289318 is 81398299.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81398299 = 19 ⋅4284121.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99289313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24822328 + ... + 24822331.

It is an arithmetic number, because the mean of its divisors is an integer number (37233495).

Almost surely, 2^99289318 is an apocalyptic number.

99289318 is a deficient number, since it is larger than the sum of its proper divisors (49644662).

99289318 is a wasteful number, since it uses less digits than its factorization.

99289318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49644661.

The product of its digits is 279936, while the sum is 49.

The square root of 99289318 is about 9964.4025410458. The cubic root of 99289318 is about 463.0567036803.

The spelling of 99289318 in words is "ninety-nine million, two hundred eighty-nine thousand, three hundred eighteen".