16471972 has 18 divisors (see below), whose sum is σ = 31685654. Its totient is φ = 7487040.

The previous prime is 16471957. The next prime is 16472003. The reversal of 16471972 is 27917461.

It can be written as a sum of positive squares in only one way, i.e., 15163236 + 1308736 = 3894^2 + 1144^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16533 + ... + 17500.

Almost surely, 2^16471972 is an apocalyptic number.

It is an amenable number.

16471972 is a deficient number, since it is larger than the sum of its proper divisors (15213682).

16471972 is a wasteful number, since it uses less digits than its factorization.

16471972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34059 (or 34046 counting only the distinct ones).

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

The square root of 16471972 is about 4058.5677276596. The cubic root of 16471972 is about 254.4379367037.

The spelling of 16471972 in words is "sixteen million, four hundred seventy-one thousand, nine hundred seventy-two".