16484821 has 4 divisors (see below), whose sum is σ = 16594144. Its totient is φ = 16375500.

The previous prime is 16484803. The next prime is 16484857. The reversal of 16484821 is 12848461.

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.

It is a cyclic number.

It is not a de Polignac number, because 16484821 - 2⁹ = 16484309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16484861) 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, 54435 + ... + 54736.

It is an arithmetic number, because the mean of its divisors is an integer number (4148536).

Almost surely, 2^16484821 is an apocalyptic number.

It is an amenable number.

16484821 is a deficient number, since it is larger than the sum of its proper divisors (109323).

16484821 is a wasteful number, since it uses less digits than its factorization.

16484821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109322.

The product of its digits is 12288, while the sum is 34.

The square root of 16484821 is about 4060.1503666736. The cubic root of 16484821 is about 254.5040778099.

The spelling of 16484821 in words is "sixteen million, four hundred eighty-four thousand, eight hundred twenty-one".