99228913 has 8 divisors (see below), whose sum is σ = 114445760. Its totient is φ = 84272400.

The previous prime is 99228901. The next prime is 99228919. The reversal of 99228913 is 31982299.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99228913 - 2¹⁷ = 99097841 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 99228913.

It is not an unprimeable number, because it can be changed into a prime (99228919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64263 + ... + 65788.

It is an arithmetic number, because the mean of its divisors is an integer number (14305720).

Almost surely, 2^99228913 is an apocalyptic number.

It is an amenable number.

99228913 is a deficient number, since it is larger than the sum of its proper divisors (15216847).

99228913 is a wasteful number, since it uses less digits than its factorization.

99228913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130167.

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

The square root of 99228913 is about 9961.3710401731. The cubic root of 99228913 is about 462.9627808062.

The spelling of 99228913 in words is "ninety-nine million, two hundred twenty-eight thousand, nine hundred thirteen".