16000447 has 2 divisors, whose sum is σ = 16000448. Its totient is φ = 16000446.

The previous prime is 16000409. The next prime is 16000463. The reversal of 16000447 is 74400061.

It is a strong prime.

It is an emirp because it is prime and its reverse (74400061) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16000447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16000477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8000223 + 8000224.

It is an arithmetic number, because the mean of its divisors is an integer number (8000224).

Almost surely, 2^16000447 is an apocalyptic number.

16000447 is a deficient number, since it is larger than the sum of its proper divisors (1).

16000447 is an equidigital number, since it uses as much as digits as its factorization.

16000447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 16000447 is about 4000.0558746098. The cubic root of 16000447 is about 251.9865565601.

The spelling of 16000447 in words is "sixteen million, four hundred forty-seven", and thus it is an aban number.