20796449 has 2 divisors, whose sum is σ = 20796450. Its totient is φ = 20796448.

The previous prime is 20796401. The next prime is 20796467. The reversal of 20796449 is 94469702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17698849 + 3097600 = 4207^2 + 1760^2 .

It is a cyclic number.

It is not a de Polignac number, because 20796449 - 2²⁰ = 19747873 is a prime.

It is not a weakly prime, because it can be changed into another prime (20706449) 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 as a sum of consecutive naturals, namely, 10398224 + 10398225.

It is an arithmetic number, because the mean of its divisors is an integer number (10398225).

Almost surely, 2^20796449 is an apocalyptic number.

It is an amenable number.

20796449 is a deficient number, since it is larger than the sum of its proper divisors (1).

20796449 is an equidigital number, since it uses as much as digits as its factorization.

20796449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 20796449 is about 4560.3123796512. The cubic root of 20796449 is about 274.9981223012.

The spelling of 20796449 in words is "twenty million, seven hundred ninety-six thousand, four hundred forty-nine".