99228239 has 8 divisors (see below), whose sum is σ = 108940368. Its totient is φ = 89631360.

The previous prime is 99228229. The next prime is 99228247. The reversal of 99228239 is 93282299.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99228239 is a prime.

It is a super-2 number, since 2×99228239² = 19692486830082242, which contains 22 as substring.

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 99228239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99228209) 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, 27002 + ... + 30455.

It is an arithmetic number, because the mean of its divisors is an integer number (13617546).

Almost surely, 2^99228239 is an apocalyptic number.

99228239 is a deficient number, since it is larger than the sum of its proper divisors (9712129).

99228239 is a wasteful number, since it uses less digits than its factorization.

99228239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57625.

The product of its digits is 139968, while the sum is 44.

The square root of 99228239 is about 9961.3372094313. The cubic root of 99228239 is about 462.9617325982.

The spelling of 99228239 in words is "ninety-nine million, two hundred twenty-eight thousand, two hundred thirty-nine".