4471987 has 8 divisors (see below), whose sum is σ = 4833360. Its totient is φ = 4113120.

The previous prime is 4471979. The next prime is 4471997. The reversal of 4471987 is 7891744.

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

It is a cyclic number.

It is not a de Polignac number, because 4471987 - 2³ = 4471979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4471927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5037 + ... + 5857.

It is an arithmetic number, because the mean of its divisors is an integer number (604170).

Almost surely, 2^4471987 is an apocalyptic number.

4471987 is a deficient number, since it is larger than the sum of its proper divisors (361373).

4471987 is a wasteful number, since it uses less digits than its factorization.

4471987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253.

The product of its digits is 56448, while the sum is 40.

The square root of 4471987 is about 2114.7073083526. The cubic root of 4471987 is about 164.7530680409.

The spelling of 4471987 in words is "four million, four hundred seventy-one thousand, nine hundred eighty-seven".