16933689 has 6 divisors (see below), whose sum is σ = 24459786. Its totient is φ = 11289120.

The previous prime is 16933687. The next prime is 16933691. The reversal of 16933689 is 98633961.

It is an interprime number because it is at equal distance from previous prime (16933687) and next prime (16933691).

It can be written as a sum of positive squares in only one way, i.e., 16744464 + 189225 = 4092^2 + 435^2 .

It is not a de Polignac number, because 16933689 - 2¹ = 16933687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16933687) 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, 940752 + ... + 940769.

It is an arithmetic number, because the mean of its divisors is an integer number (4076631).

Almost surely, 2^16933689 is an apocalyptic number.

It is an amenable number.

16933689 is a deficient number, since it is larger than the sum of its proper divisors (7526097).

16933689 is a wasteful number, since it uses less digits than its factorization.

16933689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881527 (or 1881524 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 16933689 is about 4115.0563787146. The cubic root of 16933689 is about 256.7934013648.

The spelling of 16933689 in words is "sixteen million, nine hundred thirty-three thousand, six hundred eighty-nine".