16609369 has 8 divisors (see below), whose sum is σ = 19027008. Its totient is φ = 14202960.

The previous prime is 16609361. The next prime is 16609393. The reversal of 16609369 is 96390661.

It is a happy number.

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 16609369 - 2³ = 16609361 is a prime.

It is a super-2 number, since 2×16609369² = 551742277156322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16609361) 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, 654 + ... + 5800.

It is an arithmetic number, because the mean of its divisors is an integer number (2378376).

Almost surely, 2^16609369 is an apocalyptic number.

It is an amenable number.

16609369 is a deficient number, since it is larger than the sum of its proper divisors (2417639).

16609369 is an equidigital number, since it uses as much as digits as its factorization.

16609369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5615.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 16609369 is about 4075.4593606120. The cubic root of 16609369 is about 255.1434230981.

The spelling of 16609369 in words is "sixteen million, six hundred nine thousand, three hundred sixty-nine".