63448687 has 2 divisors, whose sum is σ = 63448688. Its totient is φ = 63448686.

The previous prime is 63448681. The next prime is 63448691. The reversal of 63448687 is 78684436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63448687 - 2²³ = 55060079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63448681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31724343 + 31724344.

It is an arithmetic number, because the mean of its divisors is an integer number (31724344).

Almost surely, 2^63448687 is an apocalyptic number.

63448687 is a deficient number, since it is larger than the sum of its proper divisors (1).

63448687 is an equidigital number, since it uses as much as digits as its factorization.

63448687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 46.

The square root of 63448687 is about 7965.4684105833. The cubic root of 63448687 is about 398.8481173500.

The spelling of 63448687 in words is "sixty-three million, four hundred forty-eight thousand, six hundred eighty-seven".