2001004487 has 2 divisors, whose sum is σ = 2001004488. Its totient is φ = 2001004486.

The previous prime is 2001004483. The next prime is 2001004547. The reversal of 2001004487 is 7844001002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001004487 - 2² = 2001004483 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001004483) 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, 1000502243 + 1000502244.

It is an arithmetic number, because the mean of its divisors is an integer number (1000502244).

Almost surely, 2^2001004487 is an apocalyptic number.

2001004487 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001004487 is an equidigital number, since it uses as much as digits as its factorization.

2001004487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 2001004487 is about 44732.5886463102. The cubic root of 2001004487 is about 1260.1319436447.

Adding to 2001004487 its reverse (7844001002), we get a palindrome (9845005489).

The spelling of 2001004487 in words is "two billion, one million, four thousand, four hundred eighty-seven".