16943109 has 8 divisors (see below), whose sum is σ = 22616352. Its totient is φ = 11282640.

The previous prime is 16943099. The next prime is 16943119. The reversal of 16943109 is 90134961.

It is an interprime number because it is at equal distance from previous prime (16943099) and next prime (16943119).

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

It is not a de Polignac number, because 16943109 - 2¹³ = 16934917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16943109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16943119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522 + ... + 5844.

It is an arithmetic number, because the mean of its divisors is an integer number (2827044).

Almost surely, 2^16943109 is an apocalyptic number.

It is an amenable number.

16943109 is a deficient number, since it is larger than the sum of its proper divisors (5673243).

16943109 is a wasteful number, since it uses less digits than its factorization.

16943109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6387.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 16943109 is about 4116.2007968514. The cubic root of 16943109 is about 256.8410095268.

The spelling of 16943109 in words is "sixteen million, nine hundred forty-three thousand, one hundred nine".