4018987 has 8 divisors (see below), whose sum is σ = 4863456. Its totient is φ = 3242112.

The previous prime is 4018981. The next prime is 4019003. The reversal of 4018987 is 7898104.

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 4018987 - 2³ = 4018979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4018981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16768 + ... + 17005.

It is an arithmetic number, because the mean of its divisors is an integer number (607932).

Almost surely, 2^4018987 is an apocalyptic number.

4018987 is a deficient number, since it is larger than the sum of its proper divisors (844469).

4018987 is a wasteful number, since it uses less digits than its factorization.

4018987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33797.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 4018987 is about 2004.7411304206. The cubic root of 4018987 is about 158.9908753647.

It can be divided in two parts, 4018 and 987, that added together give a palindrome (5005).

The spelling of 4018987 in words is "four million, eighteen thousand, nine hundred eighty-seven".