16057891 has 2 divisors, whose sum is σ = 16057892. Its totient is φ = 16057890.

The previous prime is 16057871. The next prime is 16057897. The reversal of 16057891 is 19875061.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16057891 - 2¹¹ = 16055843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16057891.

It is not a weakly prime, because it can be changed into another prime (16057897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8028945 + 8028946.

It is an arithmetic number, because the mean of its divisors is an integer number (8028946).

Almost surely, 2^16057891 is an apocalyptic number.

16057891 is a deficient number, since it is larger than the sum of its proper divisors (1).

16057891 is an equidigital number, since it uses as much as digits as its factorization.

16057891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 16057891 is about 4007.2298411746. The cubic root of 16057891 is about 252.2877528873.

The spelling of 16057891 in words is "sixteen million, fifty-seven thousand, eight hundred ninety-one".