1006987 has 2 divisors, whose sum is σ = 1006988. Its totient is φ = 1006986.

The previous prime is 1006979. The next prime is 1006991. The reversal of 1006987 is 7896001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1006987 - 2³ = 1006979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1006937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503493 + 503494.

It is an arithmetic number, because the mean of its divisors is an integer number (503494).

2^1006987 is an apocalyptic number.

1006987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006987 is an equidigital number, since it uses as much as digits as its factorization.

1006987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1006987 is about 1003.4874189545. The cubic root of 1006987 is about 100.2323596717.

The spelling of 1006987 in words is "one million, six thousand, nine hundred eighty-seven".