16712172 has 72 divisors (see below), whose sum is σ = 45405360. Its totient is φ = 5166720.

The previous prime is 16712147. The next prime is 16712183. The reversal of 16712172 is 27121761.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36022 + ... + 36482.

It is an arithmetic number, because the mean of its divisors is an integer number (630630).

Almost surely, 2^16712172 is an apocalyptic number.

16712172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16712172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22702680).

16712172 is an abundant number, since it is smaller than the sum of its proper divisors (28693188).

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

16712172 is a wasteful number, since it uses less digits than its factorization.

16712172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 538 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 16712172 is about 4088.0523480014. The cubic root of 16712172 is about 255.6687406494.

The spelling of 16712172 in words is "sixteen million, seven hundred twelve thousand, one hundred seventy-two".