16000987 has 2 divisors, whose sum is σ = 16000988. Its totient is φ = 16000986.

The previous prime is 16000981. The next prime is 16001081. The reversal of 16000987 is 78900061.

It is a weak prime.

It is an emirp because it is prime and its reverse (78900061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16000987 - 2³ = 16000979 is a prime.

It is not a weakly prime, because it can be changed into another prime (16000981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8000493 + 8000494.

It is an arithmetic number, because the mean of its divisors is an integer number (8000494).

Almost surely, 2^16000987 is an apocalyptic number.

16000987 is a deficient number, since it is larger than the sum of its proper divisors (1).

16000987 is an equidigital number, since it uses as much as digits as its factorization.

16000987 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 16000987 is about 4000.1233730974. The cubic root of 16000987 is about 251.9893912978.

The spelling of 16000987 in words is "sixteen million, nine hundred eighty-seven", and thus it is an aban number.