16882409 has 2 divisors, whose sum is σ = 16882410. Its totient is φ = 16882408.

The previous prime is 16882387. The next prime is 16882423. The reversal of 16882409 is 90428861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11256025 + 5626384 = 3355^2 + 2372^2 .

It is an emirp because it is prime and its reverse (90428861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16882409 - 2⁸ = 16882153 is a prime.

It is not a weakly prime, because it can be changed into another prime (16882429) 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, 8441204 + 8441205.

It is an arithmetic number, because the mean of its divisors is an integer number (8441205).

Almost surely, 2^16882409 is an apocalyptic number.

It is an amenable number.

16882409 is a deficient number, since it is larger than the sum of its proper divisors (1).

16882409 is an equidigital number, since it uses as much as digits as its factorization.

16882409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 16882409 is about 4108.8208770887. The cubic root of 16882409 is about 256.5339249144.

The spelling of 16882409 in words is "sixteen million, eight hundred eighty-two thousand, four hundred nine".