16884145 has 8 divisors (see below), whose sum is σ = 21452904. Its totient is φ = 12712704.

The previous prime is 16884143. The next prime is 16884151. The reversal of 16884145 is 54148861.

It can be written as a sum of positive squares in 4 ways, for example, as 4822416 + 12061729 = 2196^2 + 3473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16884145 - 2¹ = 16884143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16884143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99234 + ... + 99403.

It is an arithmetic number, because the mean of its divisors is an integer number (2681613).

Almost surely, 2^16884145 is an apocalyptic number.

It is an amenable number.

16884145 is a deficient number, since it is larger than the sum of its proper divisors (4568759).

16884145 is a wasteful number, since it uses less digits than its factorization.

16884145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198659.

The product of its digits is 30720, while the sum is 37.

The square root of 16884145 is about 4109.0321244790. The cubic root of 16884145 is about 256.5427176491.

The spelling of 16884145 in words is "sixteen million, eight hundred eighty-four thousand, one hundred forty-five".