16688341 has 4 divisors (see below), whose sum is σ = 16713184. Its totient is φ = 16663500.

The previous prime is 16688333. The next prime is 16688377. The reversal of 16688341 is 14388661.

16688341 = T₃₃₃₄ + T₃₃₃₅ + T₃₃₃₆.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16688341 - 2³ = 16688333 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16688341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16688141) 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, 11385 + ... + 12766.

It is an arithmetic number, because the mean of its divisors is an integer number (4178296).

Almost surely, 2^16688341 is an apocalyptic number.

16688341 is the 3336-th centered triangular number.

It is an amenable number.

16688341 is a deficient number, since it is larger than the sum of its proper divisors (24843).

16688341 is an equidigital number, since it uses as much as digits as its factorization.

16688341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24842.

The product of its digits is 27648, while the sum is 37.

The square root of 16688341 is about 4085.1365950235. The cubic root of 16688341 is about 255.5471578071.

The spelling of 16688341 in words is "sixteen million, six hundred eighty-eight thousand, three hundred forty-one".