20832271 has 2 divisors, whose sum is σ = 20832272. Its totient is φ = 20832270.

The previous prime is 20832269. The next prime is 20832277. The reversal of 20832271 is 17223802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20832271 - 2¹ = 20832269 is a prime.

Together with 20832269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20832277) 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, 10416135 + 10416136.

It is an arithmetic number, because the mean of its divisors is an integer number (10416136).

Almost surely, 2^20832271 is an apocalyptic number.

20832271 is a deficient number, since it is larger than the sum of its proper divisors (1).

20832271 is an equidigital number, since it uses as much as digits as its factorization.

20832271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 20832271 is about 4564.2382716068. The cubic root of 20832271 is about 275.1559269985.

The spelling of 20832271 in words is "twenty million, eight hundred thirty-two thousand, two hundred seventy-one".