2228687663 has 4 divisors (see below), whose sum is σ = 2228782248. Its totient is φ = 2228593080.

The previous prime is 2228687647. The next prime is 2228687693. The reversal of 2228687663 is 3667868222.

2228687663 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2228687663 - 2⁴ = 2228687647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228687693) 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, 19445 + ... + 69537.

It is an arithmetic number, because the mean of its divisors is an integer number (557195562).

Almost surely, 2^2228687663 is an apocalyptic number.

2228687663 is a deficient number, since it is larger than the sum of its proper divisors (94585).

2228687663 is an equidigital number, since it uses as much as digits as its factorization.

2228687663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94584.

The product of its digits is 2322432, while the sum is 50.

The square root of 2228687663 is about 47208.9786269519. The cubic root of 2228687663 is about 1306.2202222465.

The spelling of 2228687663 in words is "two billion, two hundred twenty-eight million, six hundred eighty-seven thousand, six hundred sixty-three".