16859913 has 16 divisors (see below), whose sum is σ = 26290176. Its totient is φ = 9409680.

The previous prime is 16859911. The next prime is 16859929. The reversal of 16859913 is 31995861.

It is not a de Polignac number, because 16859913 - 2¹ = 16859911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16859911) 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 15 ways as a sum of consecutive naturals, for example, 8433 + ... + 10238.

It is an arithmetic number, because the mean of its divisors is an integer number (1643136).

Almost surely, 2^16859913 is an apocalyptic number.

It is an amenable number.

16859913 is a deficient number, since it is larger than the sum of its proper divisors (9430263).

16859913 is a wasteful number, since it uses less digits than its factorization.

16859913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18724.

The product of its digits is 58320, while the sum is 42.

The square root of 16859913 is about 4106.0824395036. The cubic root of 16859913 is about 256.4199294852.

The spelling of 16859913 in words is "sixteen million, eight hundred fifty-nine thousand, nine hundred thirteen".