63288987 has 4 divisors (see below), whose sum is σ = 84385320. Its totient is φ = 42192656.

The previous prime is 63288947. The next prime is 63288989. The reversal of 63288987 is 78988236.

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 63288987 - 2²⁰ = 62240411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63288989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10548162 + ... + 10548167.

It is an arithmetic number, because the mean of its divisors is an integer number (21096330).

Almost surely, 2^63288987 is an apocalyptic number.

63288987 is a deficient number, since it is larger than the sum of its proper divisors (21096333).

63288987 is a wasteful number, since it uses less digits than its factorization.

63288987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21096332.

The product of its digits is 1161216, while the sum is 51.

The square root of 63288987 is about 7955.4375743890. The cubic root of 63288987 is about 398.5132033532.

The spelling of 63288987 in words is "sixty-three million, two hundred eighty-eight thousand, nine hundred eighty-seven".