1004987 has 2 divisors, whose sum is σ = 1004988. Its totient is φ = 1004986.

The previous prime is 1004981. The next prime is 1005007. The reversal of 1004987 is 7894001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1004987 - 2¹⁰ = 1003963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1004981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502493 + 502494.

It is an arithmetic number, because the mean of its divisors is an integer number (502494).

2^1004987 is an apocalyptic number.

1004987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004987 is an equidigital number, since it uses as much as digits as its factorization.

1004987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1004987 is about 1002.4903989565. The cubic root of 1004987 is about 100.1659577612.

Adding to 1004987 its reverse (7894001), we get a palindrome (8898988).

It can be divided in two parts, 1004 and 987, that added together give a palindrome (1991).

The spelling of 1004987 in words is "one million, four thousand, nine hundred eighty-seven".