20947327 has 2 divisors, whose sum is σ = 20947328. Its totient is φ = 20947326.

The previous prime is 20947271. The next prime is 20947357. The reversal of 20947327 is 72374902.

20947327 is nontrivially palindromic in base 5.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20947327 - 2¹⁵ = 20914559 is a prime.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 20947292 and 20947301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20947357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10473663 + 10473664.

It is an arithmetic number, because the mean of its divisors is an integer number (10473664).

Almost surely, 2^20947327 is an apocalyptic number.

20947327 is a deficient number, since it is larger than the sum of its proper divisors (1).

20947327 is an equidigital number, since it uses as much as digits as its factorization.

20947327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 20947327 is about 4576.8249911920. The cubic root of 20947327 is about 275.6615565548.

The spelling of 20947327 in words is "twenty million, nine hundred forty-seven thousand, three hundred twenty-seven".