16674947 has 4 divisors (see below), whose sum is σ = 16683120. Its totient is φ = 16666776.

The previous prime is 16674941. The next prime is 16674967. The reversal of 16674947 is 74947661.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16674947 - 2¹² = 16670851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16674898 and 16674907.

It is not an unprimeable number, because it can be changed into a prime (16674941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1829 + ... + 6057.

It is an arithmetic number, because the mean of its divisors is an integer number (4170780).

Almost surely, 2^16674947 is an apocalyptic number.

16674947 is a deficient number, since it is larger than the sum of its proper divisors (8173).

16674947 is an equidigital number, since it uses as much as digits as its factorization.

16674947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8172.

The product of its digits is 254016, while the sum is 44.

The square root of 16674947 is about 4083.4969082883. The cubic root of 16674947 is about 255.4787724445.

The spelling of 16674947 in words is "sixteen million, six hundred seventy-four thousand, nine hundred forty-seven".