16971472 has 20 divisors (see below), whose sum is σ = 37579936. Its totient is φ = 7273440.

The previous prime is 16971469. The next prime is 16971511. The reversal of 16971472 is 27417961.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75654 + ... + 75877.

Almost surely, 2^16971472 is an apocalyptic number.

It is an amenable number.

16971472 is an abundant number, since it is smaller than the sum of its proper divisors (20608464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16971472 is a wasteful number, since it uses less digits than its factorization.

16971472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151546 (or 151540 counting only the distinct ones).

The product of its digits is 21168, while the sum is 37.

The square root of 16971472 is about 4119.6446448693. The cubic root of 16971472 is about 256.9842481022.

The spelling of 16971472 in words is "sixteen million, nine hundred seventy-one thousand, four hundred seventy-two".