2227999 has 4 divisors (see below), whose sum is σ = 2231064. Its totient is φ = 2224936.

The previous prime is 2227963. The next prime is 2228011. The reversal of 2227999 is 9997222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9997222 = 2 ⋅4998611.

It is a cyclic number.

It is not a de Polignac number, because 2227999 - 2⁷ = 2227871 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2227919) 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, 249 + ... + 2125.

It is an arithmetic number, because the mean of its divisors is an integer number (557766).

2^2227999 is an apocalyptic number.

2227999 is a deficient number, since it is larger than the sum of its proper divisors (3065).

2227999 is a wasteful number, since it uses less digits than its factorization.

2227999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064.

The product of its digits is 40824, while the sum is 40.

The square root of 2227999 is about 1492.6483175886. The cubic root of 2227999 is about 130.6085667994.

The spelling of 2227999 in words is "two million, two hundred twenty-seven thousand, nine hundred ninety-nine".