16786872 has 128 divisors (see below), whose sum is σ = 50688000. Its totient is φ = 5132160.

The previous prime is 16786867. The next prime is 16786879. The reversal of 16786872 is 27868761.

Its product of digits (225792) is a multiple of the sum of its prime divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16786879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153954 + ... + 154062.

It is an arithmetic number, because the mean of its divisors is an integer number (396000).

Almost surely, 2^16786872 is an apocalyptic number.

16786872 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 16786872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25344000).

16786872 is an abundant number, since it is smaller than the sum of its proper divisors (33901128).

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

16786872 is a wasteful number, since it uses less digits than its factorization.

16786872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 168 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 16786872 is about 4097.1785413867. The cubic root of 16786872 is about 256.0491035365.

The spelling of 16786872 in words is "sixteen million, seven hundred eighty-six thousand, eight hundred seventy-two".