63168487 has 4 divisors (see below), whose sum is σ = 64058256. Its totient is φ = 62278720.

The previous prime is 63168473. The next prime is 63168491. The reversal of 63168487 is 78486136.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63168487 - 2¹⁵ = 63135719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63168187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444778 + ... + 444919.

It is an arithmetic number, because the mean of its divisors is an integer number (16014564).

Almost surely, 2^63168487 is an apocalyptic number.

63168487 is a deficient number, since it is larger than the sum of its proper divisors (889769).

63168487 is an equidigital number, since it uses as much as digits as its factorization.

63168487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889768.

The product of its digits is 193536, while the sum is 43.

The square root of 63168487 is about 7947.8605297275. The cubic root of 63168487 is about 398.2601243041.

The spelling of 63168487 in words is "sixty-three million, one hundred sixty-eight thousand, four hundred eighty-seven".