16968447 has 12 divisors (see below), whose sum is σ = 25418120. Its totient is φ = 11312136.

The previous prime is 16968443. The next prime is 16968461. The reversal of 16968447 is 74486961.

It is not a de Polignac number, because 16968447 - 2² = 16968443 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 (16968443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34672 + ... + 35157.

Almost surely, 2^16968447 is an apocalyptic number.

16968447 is a deficient number, since it is larger than the sum of its proper divisors (8449673).

16968447 is an frugal number, since it uses more digits than its factorization.

16968447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69844 (or 69832 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 16968447 is about 4119.2774851908. The cubic root of 16968447 is about 256.9689788798.

The spelling of 16968447 in words is "sixteen million, nine hundred sixty-eight thousand, four hundred forty-seven".