4563987 has 8 divisors (see below), whose sum is σ = 6249936. Its totient is φ = 2960352.

The previous prime is 4563983. The next prime is 4564013. The reversal of 4563987 is 7893654.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4563987 - 2² = 4563983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4563983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20448 + ... + 20669.

It is an arithmetic number, because the mean of its divisors is an integer number (781242).

Almost surely, 2^4563987 is an apocalyptic number.

4563987 is a deficient number, since it is larger than the sum of its proper divisors (1685949).

4563987 is a wasteful number, since it uses less digits than its factorization.

4563987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41157.

The product of its digits is 181440, while the sum is 42.

The square root of 4563987 is about 2136.3489883444. The cubic root of 4563987 is about 165.8752025680.

The spelling of 4563987 in words is "four million, five hundred sixty-three thousand, nine hundred eighty-seven".