2228993 has 8 divisors (see below), whose sum is σ = 2478336. Its totient is φ = 1990800.

The previous prime is 2228987. The next prime is 2229037. The reversal of 2228993 is 3998222.

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 2228993 - 2¹² = 2224897 is a prime.

It is a d-powerful number, because it can be written as 2² + 2¹⁶ + 2¹⁶ + 8⁷ + 9 + 9³ + 3³ .

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2228923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2363 + ... + 3168.

It is an arithmetic number, because the mean of its divisors is an integer number (309792).

2^2228993 is an apocalyptic number.

It is an amenable number.

2228993 is a deficient number, since it is larger than the sum of its proper divisors (249343).

2228993 is a wasteful number, since it uses less digits than its factorization.

2228993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5575.

The product of its digits is 15552, while the sum is 35.

The square root of 2228993 is about 1492.9812456960. The cubic root of 2228993 is about 130.6279871573.

The spelling of 2228993 in words is "two million, two hundred twenty-eight thousand, nine hundred ninety-three".