6665349 has 8 divisors (see below), whose sum is σ = 8911872. Its totient is φ = 4431200.

The previous prime is 6665339. The next prime is 6665353. The reversal of 6665349 is 9435666.

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 6665349 - 2⁵ = 6665317 is a prime.

It is a d-powerful number, because it can be written as 6³ + 6⁵ + 6⁷ + 5³ + 3¹³ + 4 + 9⁷ .

6665349 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6665339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1752 + ... + 4049.

It is an arithmetic number, because the mean of its divisors is an integer number (1113984).

Almost surely, 2^6665349 is an apocalyptic number.

It is an amenable number.

6665349 is a deficient number, since it is larger than the sum of its proper divisors (2246523).

6665349 is a wasteful number, since it uses less digits than its factorization.

6665349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6187.

The product of its digits is 116640, while the sum is 39.

The square root of 6665349 is about 2581.7337198092. The cubic root of 6665349 is about 188.1948052411.

The spelling of 6665349 in words is "six million, six hundred sixty-five thousand, three hundred forty-nine".