4093987 has 8 divisors (see below), whose sum is σ = 4410560. Its totient is φ = 3787560.

The previous prime is 4093979. The next prime is 4093993. The reversal of 4093987 is 7893904.

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 4093987 - 2³ = 4093979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4093907) 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, 1689 + ... + 3322.

It is an arithmetic number, because the mean of its divisors is an integer number (551320).

Almost surely, 2^4093987 is an apocalyptic number.

4093987 is a deficient number, since it is larger than the sum of its proper divisors (316573).

4093987 is a wasteful number, since it uses less digits than its factorization.

4093987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5073.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 4093987 is about 2023.3603238178. The cubic root of 4093987 is about 159.9737847675.

The spelling of 4093987 in words is "four million, ninety-three thousand, nine hundred eighty-seven".