16318787 has 2 divisors, whose sum is σ = 16318788. Its totient is φ = 16318786.

The previous prime is 16318733. The next prime is 16318789. The reversal of 16318787 is 78781361.

It is a strong prime.

It is an emirp because it is prime and its reverse (78781361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16318787 - 2¹² = 16314691 is a prime.

Together with 16318789, 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 (16318789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8159393 + 8159394.

It is an arithmetic number, because the mean of its divisors is an integer number (8159394).

Almost surely, 2^16318787 is an apocalyptic number.

16318787 is a deficient number, since it is larger than the sum of its proper divisors (1).

16318787 is an equidigital number, since it uses as much as digits as its factorization.

16318787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 41.

The square root of 16318787 is about 4039.6518414339. The cubic root of 16318787 is about 253.6467437230.

The spelling of 16318787 in words is "sixteen million, three hundred eighteen thousand, seven hundred eighty-seven".