20063471 has 2 divisors, whose sum is σ = 20063472. Its totient is φ = 20063470.

The previous prime is 20063467. The next prime is 20063497. The reversal of 20063471 is 17436002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20063471 - 2² = 20063467 is a prime.

It is a super-3 number, since 3×20063471³ (a number of 23 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20063401) 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, 10031735 + 10031736.

It is an arithmetic number, because the mean of its divisors is an integer number (10031736).

Almost surely, 2^20063471 is an apocalyptic number.

20063471 is a deficient number, since it is larger than the sum of its proper divisors (1).

20063471 is an equidigital number, since it uses as much as digits as its factorization.

20063471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20063471 is about 4479.2266073509. The cubic root of 20063471 is about 271.7286031055.

Adding to 20063471 its reverse (17436002), we get a palindrome (37499473).

The spelling of 20063471 in words is "twenty million, sixty-three thousand, four hundred seventy-one".