16344065 has 4 divisors (see below), whose sum is σ = 19612884. Its totient is φ = 13075248.

The previous prime is 16344059. The next prime is 16344067. The reversal of 16344065 is 56044361.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11950849 + 4393216 = 3457^2 + 2096^2 .

It is a cyclic number.

It is not a de Polignac number, because 16344065 - 2⁸ = 16343809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16344067) 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, 1634402 + ... + 1634411.

It is an arithmetic number, because the mean of its divisors is an integer number (4903221).

Almost surely, 2^16344065 is an apocalyptic number.

It is an amenable number.

16344065 is a deficient number, since it is larger than the sum of its proper divisors (3268819).

16344065 is an equidigital number, since it uses as much as digits as its factorization.

16344065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268818.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 16344065 is about 4042.7793657334. The cubic root of 16344065 is about 253.7776434572. Note that the first 3 decimals are identical.

The spelling of 16344065 in words is "sixteen million, three hundred forty-four thousand, sixty-five".