16997112 has 72 divisors (see below), whose sum is σ = 50625120. Its totient is φ = 5148000.

The previous prime is 16997111. The next prime is 16997143. The reversal of 16997112 is 21179961.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16997111) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7737 + ... + 9687.

Almost surely, 2^16997112 is an apocalyptic number.

16997112 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 16997112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25312560).

16997112 is an abundant number, since it is smaller than the sum of its proper divisors (33628008).

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

16997112 is a wasteful number, since it uses less digits than its factorization.

16997112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985 (or 1967 counting only the distinct ones).

The product of its digits is 6804, while the sum is 36.

The square root of 16997112 is about 4122.7553892997. The cubic root of 16997112 is about 257.1135977290.

The spelling of 16997112 in words is "sixteen million, nine hundred ninety-seven thousand, one hundred twelve".