63740671 has 2 divisors, whose sum is σ = 63740672. Its totient is φ = 63740670.

The previous prime is 63740657. The next prime is 63740683. The reversal of 63740671 is 17604736.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63740671 - 2²⁵ = 30186239 is a prime.

It is equal to p_3770539 and since 63740671 and 3770539 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63740771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31870335 + 31870336.

It is an arithmetic number, because the mean of its divisors is an integer number (31870336).

Almost surely, 2^63740671 is an apocalyptic number.

63740671 is a deficient number, since it is larger than the sum of its proper divisors (1).

63740671 is an equidigital number, since it uses as much as digits as its factorization.

63740671 is an evil number, because the sum of its binary digits is even.

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

The square root of 63740671 is about 7983.7754853202. The cubic root of 63740671 is about 399.4589998770.

The spelling of 63740671 in words is "sixty-three million, seven hundred forty thousand, six hundred seventy-one".