16474 has 4 divisors (see below), whose sum is σ = 24714. Its totient is φ = 8236.

The previous prime is 16453. The next prime is 16477. The reversal of 16474 is 47461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47461 = 31 ⋅1531.

It can be written as a sum of positive squares in only one way, i.e., 13225 + 3249 = 115^2 + 57^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 1 + 6² + 4 + 7² + 4⁷ .

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (16477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4117 + ... + 4120.

2¹⁶⁴⁷⁴ is an apocalyptic number.

16474 is a deficient number, since it is larger than the sum of its proper divisors (8240).

16474 is an equidigital number, since it uses as much as digits as its factorization.

16474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8239.

The product of its digits is 672, while the sum is 22.

The square root of 16474 is about 128.3510810239. The cubic root of 16474 is about 25.4448378258. Note that the first 3 decimals are identical.

The spelling of 16474 in words is "sixteen thousand, four hundred seventy-four".