16350909 has 4 divisors (see below), whose sum is σ = 21801216. Its totient is φ = 10900604.

The previous prime is 16350899. The next prime is 16350913. The reversal of 16350909 is 90905361.

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 16350909 - 2¹⁹ = 15826621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16350909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16350949) 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, 2725149 + ... + 2725154.

It is an arithmetic number, because the mean of its divisors is an integer number (5450304).

Almost surely, 2^16350909 is an apocalyptic number.

It is an amenable number.

16350909 is a deficient number, since it is larger than the sum of its proper divisors (5450307).

16350909 is an equidigital number, since it uses as much as digits as its factorization.

16350909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5450306.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 16350909 is about 4043.6257245200. The cubic root of 16350909 is about 253.8130612438.

The spelling of 16350909 in words is "sixteen million, three hundred fifty thousand, nine hundred nine".