16679963 has 4 divisors (see below), whose sum is σ = 16694928. Its totient is φ = 16665000.

The previous prime is 16679951. The next prime is 16679977. The reversal of 16679963 is 36997661.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 16679963 - 2⁴ = 16679947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16679903) 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, 5663 + ... + 8088.

It is an arithmetic number, because the mean of its divisors is an integer number (4173732).

Almost surely, 2^16679963 is an apocalyptic number.

16679963 is a deficient number, since it is larger than the sum of its proper divisors (14965).

16679963 is a wasteful number, since it uses less digits than its factorization.

16679963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14964.

The product of its digits is 367416, while the sum is 47.

The square root of 16679963 is about 4084.1110415854. Note that the first 3 decimals coincide. The cubic root of 16679963 is about 255.5043867798.

The spelling of 16679963 in words is "sixteen million, six hundred seventy-nine thousand, nine hundred sixty-three".