104002587 has 24 divisors (see below), whose sum is σ = 165232704. Its totient is φ = 62636544.

The previous prime is 104002543. The next prime is 104002607. The reversal of 104002587 is 785200401.

104002587 is a `hidden beast` number, since 1 + 0 + 400 + 258 + 7 = 666.

It is not a de Polignac number, because 104002587 - 2⁸ = 104002331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104002587.

It is not an unprimeable number, because it can be changed into a prime (104002537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3958 + ... + 14955.

It is an arithmetic number, because the mean of its divisors is an integer number (6884696).

Almost surely, 2^104002587 is an apocalyptic number.

104002587 is a deficient number, since it is larger than the sum of its proper divisors (61230117).

104002587 is a wasteful number, since it uses less digits than its factorization.

104002587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18979 (or 18976 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 104002587 is about 10198.1658645072. The cubic root of 104002587 is about 470.2708368085.

Adding to 104002587 its reverse (785200401), we get a palindrome (889202988).

The spelling of 104002587 in words is "one hundred four million, two thousand, five hundred eighty-seven".