16897356 has 144 divisors (see below), whose sum is σ = 53114880. Its totient is φ = 4626720.

The previous prime is 16897351. The next prime is 16897367. The reversal of 16897356 is 65379861.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16897351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 164001 + ... + 164103.

Almost surely, 2^16897356 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 16897356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26557440).

16897356 is an abundant number, since it is smaller than the sum of its proper divisors (36217524).

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

16897356 is a wasteful number, since it uses less digits than its factorization.

16897356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 146 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 16897356 is about 4110.6393663273. The cubic root of 16897356 is about 256.6096108255.

It can be divided in two parts, 1689 and 7356, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 16897356 in words is "sixteen million, eight hundred ninety-seven thousand, three hundred fifty-six".