20914349 has 2 divisors, whose sum is σ = 20914350. Its totient is φ = 20914348.

The previous prime is 20914343. The next prime is 20914363. The reversal of 20914349 is 94341902.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11854249 + 9060100 = 3443^2 + 3010^2 .

It is a cyclic number.

It is not a de Polignac number, because 20914349 - 2⁸ = 20914093 is a prime.

It is a Chen prime.

It is equal to p_1324877 and since 20914349 and 1324877 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20914343) 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, 10457174 + 10457175.

It is an arithmetic number, because the mean of its divisors is an integer number (10457175).

Almost surely, 2^20914349 is an apocalyptic number.

It is an amenable number.

20914349 is a deficient number, since it is larger than the sum of its proper divisors (1).

20914349 is an equidigital number, since it uses as much as digits as its factorization.

20914349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 20914349 is about 4573.2208562456. The cubic root of 20914349 is about 275.5168198443.

The spelling of 20914349 in words is "twenty million, nine hundred fourteen thousand, three hundred forty-nine".