16971693 has 12 divisors (see below), whose sum is σ = 23884128. Its totient is φ = 10718280.

The previous prime is 16971683. The next prime is 16971701. The reversal of 16971693 is 39617961.

It is not a de Polignac number, because 16971693 - 2¹⁰ = 16970669 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16971623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6753 + ... + 8918.

It is an arithmetic number, because the mean of its divisors is an integer number (1990344).

Almost surely, 2^16971693 is an apocalyptic number.

It is an amenable number.

16971693 is a deficient number, since it is larger than the sum of its proper divisors (6912435).

16971693 is a wasteful number, since it uses less digits than its factorization.

16971693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15712 (or 15693 counting only the distinct ones).

The product of its digits is 61236, while the sum is 42.

The square root of 16971693 is about 4119.6714674838. The cubic root of 16971693 is about 256.9853635676.

The spelling of 16971693 in words is "sixteen million, nine hundred seventy-one thousand, six hundred ninety-three".