63471671 has 2 divisors, whose sum is σ = 63471672. Its totient is φ = 63471670.

The previous prime is 63471643. The next prime is 63471673. The reversal of 63471671 is 17617436.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63471671 is a prime.

It is a Sophie Germain prime.

Together with 63471673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63471673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31735835 + 31735836.

It is an arithmetic number, because the mean of its divisors is an integer number (31735836).

Almost surely, 2^63471671 is an apocalyptic number.

63471671 is a deficient number, since it is larger than the sum of its proper divisors (1).

63471671 is an equidigital number, since it uses as much as digits as its factorization.

63471671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 63471671 is about 7966.9110074106. The cubic root of 63471671 is about 398.8962718449.

The spelling of 63471671 in words is "sixty-three million, four hundred seventy-one thousand, six hundred seventy-one".