16969972 has 12 divisors (see below), whose sum is σ = 29787940. Its totient is φ = 8459136.

The previous prime is 16969963. The next prime is 16969991. The reversal of 16969972 is 27996961.

It can be written as a sum of positive squares in 2 ways, for example, as 2802276 + 14167696 = 1674^2 + 3764^2 .

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, 4947 + ... + 7642.

Almost surely, 2^16969972 is an apocalyptic number.

It is an amenable number.

16969972 is a deficient number, since it is larger than the sum of its proper divisors (12817968).

16969972 is a wasteful number, since it uses less digits than its factorization.

16969972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12930 (or 12928 counting only the distinct ones).

The product of its digits is 367416, while the sum is 49.

The square root of 16969972 is about 4119.4625863090. The cubic root of 16969972 is about 256.9766768137.

The spelling of 16969972 in words is "sixteen million, nine hundred sixty-nine thousand, nine hundred seventy-two".