16974433 has 6 divisors (see below), whose sum is σ = 19745826. Its totient is φ = 14549472.

The previous prime is 16974427. The next prime is 16974443. The reversal of 16974433 is 33447961.

It can be written as a sum of positive squares in only one way, i.e., 16257024 + 717409 = 4032^2 + 847^2 .

It is not a de Polignac number, because 16974433 - 2⁵ = 16974401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16974392 and 16974401.

It is not an unprimeable number, because it can be changed into a prime (16974403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173160 + ... + 173257.

It is an arithmetic number, because the mean of its divisors is an integer number (3290971).

Almost surely, 2^16974433 is an apocalyptic number.

It is an amenable number.

16974433 is a deficient number, since it is larger than the sum of its proper divisors (2771393).

16974433 is an equidigital number, since it uses as much as digits as its factorization.

16974433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346431 (or 346424 counting only the distinct ones).

The product of its digits is 54432, while the sum is 37.

The square root of 16974433 is about 4120.0040048524. The cubic root of 16974433 is about 256.9991925161. Note that the first 3 decimals are identical.

The spelling of 16974433 in words is "sixteen million, nine hundred seventy-four thousand, four hundred thirty-three".