16673966 has 4 divisors (see below), whose sum is σ = 25010952. Its totient is φ = 8336982.

The previous prime is 16673929. The next prime is 16673971. The reversal of 16673966 is 66937661.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×16673966² = 556042284338312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4168490 + ... + 4168493.

It is an arithmetic number, because the mean of its divisors is an integer number (6252738).

Almost surely, 2^16673966 is an apocalyptic number.

16673966 is a deficient number, since it is larger than the sum of its proper divisors (8336986).

16673966 is an equidigital number, since it uses as much as digits as its factorization.

16673966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8336985.

The product of its digits is 244944, while the sum is 44.

The square root of 16673966 is about 4083.3767888844. The cubic root of 16673966 is about 255.4737623418.

The spelling of 16673966 in words is "sixteen million, six hundred seventy-three thousand, nine hundred sixty-six".