20892241 has 2 divisors, whose sum is σ = 20892242. Its totient is φ = 20892240.

The previous prime is 20892217. The next prime is 20892251. The reversal of 20892241 is 14229802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12278016 + 8614225 = 3504^2 + 2935^2 .

It is a cyclic number.

It is not a de Polignac number, because 20892241 - 2⁹ = 20891729 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20892251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10446120 + 10446121.

It is an arithmetic number, because the mean of its divisors is an integer number (10446121).

Almost surely, 2^20892241 is an apocalyptic number.

It is an amenable number.

20892241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20892241 is an equidigital number, since it uses as much as digits as its factorization.

20892241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 20892241 is about 4570.8031023005. The cubic root of 20892241 is about 275.4197051255.

The spelling of 20892241 in words is "twenty million, eight hundred ninety-two thousand, two hundred forty-one".