4004987 has 16 divisors (see below), whose sum is σ = 4804800. Its totient is φ = 3265920.

The previous prime is 4004951. The next prime is 4004989. The reversal of 4004987 is 7894004.

It is a happy number.

It is not a de Polignac number, because 4004987 - 2⁸ = 4004731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4004989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22037 + ... + 22217.

It is an arithmetic number, because the mean of its divisors is an integer number (300300).

Almost surely, 2^4004987 is an apocalyptic number.

4004987 is a deficient number, since it is larger than the sum of its proper divisors (799813).

4004987 is a wasteful number, since it uses less digits than its factorization.

4004987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 4004987 is about 2001.2463616457. The cubic root of 4004987 is about 158.8060475419.

The spelling of 4004987 in words is "four million, four thousand, nine hundred eighty-seven".