16697133 has 6 divisors (see below), whose sum is σ = 24118094. Its totient is φ = 11131416.

The previous prime is 16697117. The next prime is 16697147. The reversal of 16697133 is 33179661.

It can be written as a sum of positive squares in only one way, i.e., 16670889 + 26244 = 4083^2 + 162^2 .

It is not a de Polignac number, because 16697133 - 2⁴ = 16697117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16697183) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 927610 + ... + 927627.

Almost surely, 2^16697133 is an apocalyptic number.

It is an amenable number.

16697133 is a deficient number, since it is larger than the sum of its proper divisors (7420961).

16697133 is a wasteful number, since it uses less digits than its factorization.

16697133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855243 (or 1855240 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 16697133 is about 4086.2125495378. The cubic root of 16697133 is about 255.5920269799.

The spelling of 16697133 in words is "sixteen million, six hundred ninety-seven thousand, one hundred thirty-three".