16884849 has 4 divisors (see below), whose sum is σ = 22513136. Its totient is φ = 11256564.

The previous prime is 16884841. The next prime is 16884851. The reversal of 16884849 is 94848861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94848861 = 3 ⋅31616287.

It is not a de Polignac number, because 16884849 - 2³ = 16884841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16884798 and 16884807.

It is not an unprimeable number, because it can be changed into a prime (16884841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2814139 + ... + 2814144.

It is an arithmetic number, because the mean of its divisors is an integer number (5628284).

Almost surely, 2^16884849 is an apocalyptic number.

It is an amenable number.

16884849 is a deficient number, since it is larger than the sum of its proper divisors (5628287).

16884849 is an equidigital number, since it uses as much as digits as its factorization.

16884849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5628286.

The product of its digits is 442368, while the sum is 48.

The square root of 16884849 is about 4109.1177885283. The cubic root of 16884849 is about 256.5462831946.

The spelling of 16884849 in words is "sixteen million, eight hundred eighty-four thousand, eight hundred forty-nine".