99229813 has 4 divisors (see below), whose sum is σ = 100627488. Its totient is φ = 97832140.

The previous prime is 99229783. The next prime is 99229817. The reversal of 99229813 is 31892299.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99229813 - 2²¹ = 97132661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99229813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99229817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698731 + ... + 698872.

It is an arithmetic number, because the mean of its divisors is an integer number (25156872).

Almost surely, 2^99229813 is an apocalyptic number.

It is an amenable number.

99229813 is a deficient number, since it is larger than the sum of its proper divisors (1397675).

99229813 is a wasteful number, since it uses less digits than its factorization.

99229813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397674.

The product of its digits is 69984, while the sum is 43.

The square root of 99229813 is about 9961.4162145751. The cubic root of 99229813 is about 462.9641804830.

The spelling of 99229813 in words is "ninety-nine million, two hundred twenty-nine thousand, eight hundred thirteen".