20608349 has 2 divisors, whose sum is σ = 20608350. Its totient is φ = 20608348.

The previous prime is 20608277. The next prime is 20608373. The reversal of 20608349 is 94380602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10936249 + 9672100 = 3307^2 + 3110^2 .

It is a cyclic number.

It is not a de Polignac number, because 20608349 - 2¹⁶ = 20542813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20608249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10304174 + 10304175.

It is an arithmetic number, because the mean of its divisors is an integer number (10304175).

Almost surely, 2^20608349 is an apocalyptic number.

It is an amenable number.

20608349 is a deficient number, since it is larger than the sum of its proper divisors (1).

20608349 is an equidigital number, since it uses as much as digits as its factorization.

20608349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 20608349 is about 4539.6419462332. The cubic root of 20608349 is about 274.1665077414.

The spelling of 20608349 in words is "twenty million, six hundred eight thousand, three hundred forty-nine".