16941605 has 8 divisors (see below), whose sum is σ = 21525912. Its totient is φ = 12755968.

The previous prime is 16941601. The next prime is 16941607. The reversal of 16941605 is 50614961.

It can be written as a sum of positive squares in 4 ways, for example, as 4990756 + 11950849 = 2234^2 + 3457^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16941605 - 2² = 16941601 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 (16941601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99572 + ... + 99741.

It is an arithmetic number, because the mean of its divisors is an integer number (2690739).

Almost surely, 2^16941605 is an apocalyptic number.

It is an amenable number.

16941605 is a deficient number, since it is larger than the sum of its proper divisors (4584307).

16941605 is a wasteful number, since it uses less digits than its factorization.

16941605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199335.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 16941605 is about 4116.0181000574. The cubic root of 16941605 is about 256.8334095775.

The spelling of 16941605 in words is "sixteen million, nine hundred forty-one thousand, six hundred five".