2004061987 has 2 divisors, whose sum is σ = 2004061988. Its totient is φ = 2004061986.

The previous prime is 2004061931. The next prime is 2004062057. The reversal of 2004061987 is 7891604002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2004061987 - 2²⁷ = 1869844259 is a prime.

It is not a weakly prime, because it can be changed into another prime (2004061687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002030993 + 1002030994.

It is an arithmetic number, because the mean of its divisors is an integer number (1002030994).

Almost surely, 2^2004061987 is an apocalyptic number.

2004061987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004061987 is an equidigital number, since it uses as much as digits as its factorization.

2004061987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 2004061987 is about 44766.7509095757. The cubic root of 2004061987 is about 1260.7734369118.

Adding to 2004061987 its reverse (7891604002), we get a palindrome (9895665989).

The spelling of 2004061987 in words is "two billion, four million, sixty-one thousand, nine hundred eighty-seven".