2208663823 has 2 divisors, whose sum is σ = 2208663824. Its totient is φ = 2208663822.

The previous prime is 2208663703. The next prime is 2208663871. The reversal of 2208663823 is 3283668022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2208663823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2208663323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1104331911 + 1104331912.

It is an arithmetic number, because the mean of its divisors is an integer number (1104331912).

Almost surely, 2^2208663823 is an apocalyptic number.

2208663823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2208663823 is an equidigital number, since it uses as much as digits as its factorization.

2208663823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 2208663823 is about 46996.4235128589. The cubic root of 2208663823 is about 1302.2964975689.

The spelling of 2208663823 in words is "two billion, two hundred eight million, six hundred sixty-three thousand, eight hundred twenty-three".