20608223 has 8 divisors (see below), whose sum is σ = 21659088. Its totient is φ = 19583424.

The previous prime is 20608219. The next prime is 20608229. The reversal of 20608223 is 32280602.

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 20608223 - 2² = 20608219 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 (20608229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4886 + ... + 8067.

It is an arithmetic number, because the mean of its divisors is an integer number (2707386).

Almost surely, 2^20608223 is an apocalyptic number.

20608223 is a deficient number, since it is larger than the sum of its proper divisors (1050865).

20608223 is a wasteful number, since it uses less digits than its factorization.

20608223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13033.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20608223 is about 4539.6280684655. The cubic root of 20608223 is about 274.1659489864.

Adding to 20608223 its reverse (32280602), we get a palindrome (52888825).

The spelling of 20608223 in words is "twenty million, six hundred eight thousand, two hundred twenty-three".