16448987 has 2 divisors, whose sum is σ = 16448988. Its totient is φ = 16448986.

The previous prime is 16448981. The next prime is 16448989. The reversal of 16448987 is 78984461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16448987 - 2⁶ = 16448923 is a prime.

Together with 16448989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16448981) 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, 8224493 + 8224494.

It is an arithmetic number, because the mean of its divisors is an integer number (8224494).

Almost surely, 2^16448987 is an apocalyptic number.

16448987 is a deficient number, since it is larger than the sum of its proper divisors (1).

16448987 is an equidigital number, since it uses as much as digits as its factorization.

16448987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 47.

The square root of 16448987 is about 4055.7350751744. The cubic root of 16448987 is about 254.3195339950.

The spelling of 16448987 in words is "sixteen million, four hundred forty-eight thousand, nine hundred eighty-seven".