2239663 has 4 divisors (see below), whose sum is σ = 2357560. Its totient is φ = 2121768.

The previous prime is 2239651. The next prime is 2239667. The reversal of 2239663 is 3669322.

2239663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-2239663 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 2¹⁹ + 3³ + 9² + 6⁵ + 6⁸ + 3⁹ .

It is a Duffinian number.

2239663 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2239667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58920 + ... + 58957.

It is an arithmetic number, because the mean of its divisors is an integer number (589390).

2^2239663 is an apocalyptic number.

2239663 is a deficient number, since it is larger than the sum of its proper divisors (117897).

2239663 is a wasteful number, since it uses less digits than its factorization.

2239663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117896.

The product of its digits is 11664, while the sum is 31.

The square root of 2239663 is about 1496.5503666766. The cubic root of 2239663 is about 130.8360904752.

The spelling of 2239663 in words is "two million, two hundred thirty-nine thousand, six hundred sixty-three".