999999227 has 8 divisors (see below), whose sum is σ = 1005374160. Its totient is φ = 994639360.

The previous prime is 999999223. The next prime is 999999229. The reversal of 999999227 is 722999999.

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 999999227 - 2² = 999999223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999999223) 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, 144527 + ... + 151287.

It is an arithmetic number, because the mean of its divisors is an integer number (125671770).

Almost surely, 2^999999227 is an apocalyptic number.

999999227 is a deficient number, since it is larger than the sum of its proper divisors (5374933).

999999227 is a wasteful number, since it uses less digits than its factorization.

999999227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7533.

The product of its digits is 14880348, while the sum is 65.

The square root of 999999227 is about 31622.7643794783. The cubic root of 999999227 is about 999.9997423333. Note that the first 3 decimals are identical.

The spelling of 999999227 in words is "nine hundred ninety-nine million, nine hundred ninety-nine thousand, two hundred twenty-seven".