16359909 has 16 divisors (see below), whose sum is σ = 23046144. Its totient is φ = 10306800.

The previous prime is 16359907. The next prime is 16359913. The reversal of 16359909 is 90995361.

It is not a de Polignac number, because 16359909 - 2¹ = 16359907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16359907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1954 + ... + 6044.

It is an arithmetic number, because the mean of its divisors is an integer number (1440384).

Almost surely, 2^16359909 is an apocalyptic number.

It is an amenable number.

16359909 is a deficient number, since it is larger than the sum of its proper divisors (6686235).

16359909 is a wasteful number, since it uses less digits than its factorization.

16359909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4168.

The product of its (nonzero) digits is 65610, while the sum is 42.

The square root of 16359909 is about 4044.7384340647. The cubic root of 16359909 is about 253.8596213170.

It can be divided in two parts, 16359 and 909, that multiplied together give a triangular number (14870331 = T₅₄₅₃).

The spelling of 16359909 in words is "sixteen million, three hundred fifty-nine thousand, nine hundred nine".