16804871 has 2 divisors, whose sum is σ = 16804872. Its totient is φ = 16804870.

The previous prime is 16804861. The next prime is 16804877. The reversal of 16804871 is 17840861.

It is a strong prime.

It is an emirp because it is prime and its reverse (17840861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16804871 - 2¹⁴ = 16788487 is a prime.

It is a Sophie Germain prime.

It is equal to p_1079549 and since 16804871 and 1079549 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16804877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8402435 + 8402436.

It is an arithmetic number, because the mean of its divisors is an integer number (8402436).

Almost surely, 2^16804871 is an apocalyptic number.

16804871 is a deficient number, since it is larger than the sum of its proper divisors (1).

16804871 is an equidigital number, since it uses as much as digits as its factorization.

16804871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 16804871 is about 4099.3744644763. The cubic root of 16804871 is about 256.1405833878.

The spelling of 16804871 in words is "sixteen million, eight hundred four thousand, eight hundred seventy-one".