2289663 has 6 divisors (see below), whose sum is σ = 3307304. Its totient is φ = 1526436.

The previous prime is 2289659. The next prime is 2289667. The reversal of 2289663 is 3669822.

It is an interprime number because it is at equal distance from previous prime (2289659) and next prime (2289667).

It is not a de Polignac number, because 2289663 - 2² = 2289659 is a prime.

It is a Duffinian number.

2289663 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2289667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127195 + ... + 127212.

2^2289663 is an apocalyptic number.

2289663 is a deficient number, since it is larger than the sum of its proper divisors (1017641).

2289663 is a wasteful number, since it uses less digits than its factorization.

2289663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254413 (or 254410 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 2289663 is about 1513.1632430111. The cubic root of 2289663 is about 131.8025629604.

The spelling of 2289663 in words is "two million, two hundred eighty-nine thousand, six hundred sixty-three".