999227 has 4 divisors (see below), whose sum is σ = 1001616. Its totient is φ = 996840.

The previous prime is 999221. The next prime is 999233. The reversal of 999227 is 722999.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (999221) and next prime (999233).

It is a cyclic number.

It is not a de Polignac number, because 999227 - 2¹⁴ = 982843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383 + ... + 1464.

It is an arithmetic number, because the mean of its divisors is an integer number (250404).

2⁹⁹⁹²²⁷ is an apocalyptic number.

999227 is a deficient number, since it is larger than the sum of its proper divisors (2389).

999227 is a wasteful number, since it uses less digits than its factorization.

999227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388.

The product of its digits is 20412, while the sum is 38.

The square root of 999227 is about 999.6134252800. The cubic root of 999227 is about 99.9742266913.

The spelling of 999227 in words is "nine hundred ninety-nine thousand, two hundred twenty-seven".