16974613 has 4 divisors (see below), whose sum is σ = 16984800. Its totient is φ = 16964428.

The previous prime is 16974611. The next prime is 16974631. The reversal of 16974613 is 31647961.

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, 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 16974613 - 2¹ = 16974611 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 (16974611) 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, 1945 + ... + 6142.

It is an arithmetic number, because the mean of its divisors is an integer number (4246200).

Almost surely, 2^16974613 is an apocalyptic number.

It is an amenable number.

16974613 is a deficient number, since it is larger than the sum of its proper divisors (10187).

16974613 is an equidigital number, since it uses as much as digits as its factorization.

16974613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10186.

The product of its digits is 27216, while the sum is 37.

The square root of 16974613 is about 4120.0258494335. The cubic root of 16974613 is about 257.0001009351. Note that the first 3 decimals are identical.

The spelling of 16974613 in words is "sixteen million, nine hundred seventy-four thousand, six hundred thirteen".