63974671 has 2 divisors, whose sum is σ = 63974672. Its totient is φ = 63974670.

The previous prime is 63974663. The next prime is 63974681. The reversal of 63974671 is 17647936.

63974671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63974671 - 2³ = 63974663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63974681) 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, 31987335 + 31987336.

It is an arithmetic number, because the mean of its divisors is an integer number (31987336).

Almost surely, 2^63974671 is an apocalyptic number.

63974671 is a deficient number, since it is larger than the sum of its proper divisors (1).

63974671 is an equidigital number, since it uses as much as digits as its factorization.

63974671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 43.

The square root of 63974671 is about 7998.4167808386. The cubic root of 63974671 is about 399.9472242871.

The spelling of 63974671 in words is "sixty-three million, nine hundred seventy-four thousand, six hundred seventy-one".