16865345 has 8 divisors (see below), whose sum is σ = 23129664. Its totient is φ = 11564784.

The previous prime is 16865311. The next prime is 16865347. The reversal of 16865345 is 54356861.

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

It is not a de Polignac number, because 16865345 - 2⁸ = 16865089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16865299 and 16865308.

It is not an unprimeable number, because it can be changed into a prime (16865347) 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, 240899 + ... + 240968.

It is an arithmetic number, because the mean of its divisors is an integer number (2891208).

Almost surely, 2^16865345 is an apocalyptic number.

It is an amenable number.

16865345 is a deficient number, since it is larger than the sum of its proper divisors (6264319).

16865345 is an equidigital number, since it uses as much as digits as its factorization.

16865345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481879.

The product of its digits is 86400, while the sum is 38.

The square root of 16865345 is about 4106.7438439718. The cubic root of 16865345 is about 256.4474646905.

The spelling of 16865345 in words is "sixteen million, eight hundred sixty-five thousand, three hundred forty-five".