16933289 has 4 divisors (see below), whose sum is σ = 16942020. Its totient is φ = 16924560.

The previous prime is 16933283. The next prime is 16933327. The reversal of 16933289 is 98233961.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 14707225 + 2226064 = 3835^2 + 1492^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16933289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16933283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2 + ... + 5819.

It is an arithmetic number, because the mean of its divisors is an integer number (4235505).

Almost surely, 2^16933289 is an apocalyptic number.

It is an amenable number.

16933289 is a deficient number, since it is larger than the sum of its proper divisors (8731).

16933289 is an equidigital number, since it uses as much as digits as its factorization.

16933289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8730.

The product of its digits is 69984, while the sum is 41.

The square root of 16933289 is about 4115.0077764204. The cubic root of 16933289 is about 256.7913793960.

The spelling of 16933289 in words is "sixteen million, nine hundred thirty-three thousand, two hundred eighty-nine".