20710273 has 2 divisors, whose sum is σ = 20710274. Its totient is φ = 20710272.

The previous prime is 20710259. The next prime is 20710279. The reversal of 20710273 is 37201702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18601969 + 2108304 = 4313^2 + 1452^2 .

It is a cyclic number.

It is not a de Polignac number, because 20710273 - 2¹³ = 20702081 is a prime.

It is not a weakly prime, because it can be changed into another prime (20710279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10355136 + 10355137.

It is an arithmetic number, because the mean of its divisors is an integer number (10355137).

Almost surely, 2^20710273 is an apocalyptic number.

It is an amenable number.

20710273 is a deficient number, since it is larger than the sum of its proper divisors (1).

20710273 is an equidigital number, since it uses as much as digits as its factorization.

20710273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 20710273 is about 4550.8540956616. The cubic root of 20710273 is about 274.6177521202.

Adding to 20710273 its reverse (37201702), we get a palindrome (57911975).

The spelling of 20710273 in words is "twenty million, seven hundred ten thousand, two hundred seventy-three".