16007891 has 2 divisors, whose sum is σ = 16007892. Its totient is φ = 16007890.

The previous prime is 16007879. The next prime is 16007909. The reversal of 16007891 is 19870061.

16007891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (19870061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16007891 - 2²² = 11813587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16057891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8003945 + 8003946.

It is an arithmetic number, because the mean of its divisors is an integer number (8003946).

Almost surely, 2^16007891 is an apocalyptic number.

16007891 is a deficient number, since it is larger than the sum of its proper divisors (1).

16007891 is an equidigital number, since it uses as much as digits as its factorization.

16007891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 16007891 is about 4000.9862534130. The cubic root of 16007891 is about 252.0256283249.

The spelling of 16007891 in words is "sixteen million, seven thousand, eight hundred ninety-one".