16949369 has 8 divisors (see below), whose sum is σ = 17589000. Its totient is φ = 16313472.

The previous prime is 16949363. The next prime is 16949377. The reversal of 16949369 is 96394961.

It can be written as a sum of positive squares in 4 ways, for example, as 2418025 + 14531344 = 1555^2 + 3812^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 16949369 - 2²⁰ = 15900793 is a prime.

It is a super-2 number, since 2×16949369² = 574562218996322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16949363) 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, 11147 + ... + 12575.

It is an arithmetic number, because the mean of its divisors is an integer number (2198625).

Almost surely, 2^16949369 is an apocalyptic number.

It is an amenable number.

16949369 is a deficient number, since it is larger than the sum of its proper divisors (639631).

16949369 is a wasteful number, since it uses less digits than its factorization.

16949369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867.

The product of its digits is 314928, while the sum is 47.

The square root of 16949369 is about 4116.9611365666. The cubic root of 16949369 is about 256.8726374636.

The spelling of 16949369 in words is "sixteen million, nine hundred forty-nine thousand, three hundred sixty-nine".