16973992 has 96 divisors (see below), whose sum is σ = 40629600. Its totient is φ = 6604416.

The previous prime is 16973987. The next prime is 16973993. The reversal of 16973992 is 29937961.

It is not an unprimeable number, because it can be changed into a prime (16973993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 320238 + ... + 320290.

It is an arithmetic number, because the mean of its divisors is an integer number (423225).

Almost surely, 2^16973992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16973992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20314800).

16973992 is an abundant number, since it is smaller than the sum of its proper divisors (23655608).

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

16973992 is a wasteful number, since it uses less digits than its factorization.

16973992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 124 counting only the distinct ones).

The product of its digits is 183708, while the sum is 46.

The square root of 16973992 is about 4119.9504851394. The cubic root of 16973992 is about 256.9969668625.

The spelling of 16973992 in words is "sixteen million, nine hundred seventy-three thousand, nine hundred ninety-two".