1004087 has 8 divisors (see below), whose sum is σ = 1155072. Its totient is φ = 855000.

The previous prime is 1004077. The next prime is 1004089. The reversal of 1004087 is 7804001.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1004087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004089) 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, 962 + ... + 1712.

It is an arithmetic number, because the mean of its divisors is an integer number (144384).

2^1004087 is an apocalyptic number.

1004087 is a deficient number, since it is larger than the sum of its proper divisors (150985).

1004087 is an equidigital number, since it uses as much as digits as its factorization.

1004087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 1004087 is about 1002.0414163097. The cubic root of 1004087 is about 100.1360481584.

Adding to 1004087 its reverse (7804001), we get a palindrome (8808088).

The spelling of 1004087 in words is "one million, four thousand, eighty-seven".