16972164 has 36 divisors (see below), whose sum is σ = 46803120. Its totient is φ = 5142960.

The previous prime is 16972157. The next prime is 16972169. The reversal of 16972164 is 46127961.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (16972169) 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, 21034 + ... + 21825.

Almost surely, 2^16972164 is an apocalyptic number.

It is an amenable number.

16972164 is an abundant number, since it is smaller than the sum of its proper divisors (29830956).

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

16972164 is a wasteful number, since it uses less digits than its factorization.

16972164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42880 (or 42875 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 16972164 is about 4119.7286318397. The cubic root of 16972164 is about 256.9877408395.

The spelling of 16972164 in words is "sixteen million, nine hundred seventy-two thousand, one hundred sixty-four".