6609545 has 8 divisors (see below), whose sum is σ = 7966080. Its totient is φ = 5264560.

The previous prime is 6609523. The next prime is 6609553. The reversal of 6609545 is 5459066.

It is a happy number.

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

It is not a de Polignac number, because 6609545 - 2¹⁶ = 6544009 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 1571 + ... + 3960.

It is an arithmetic number, because the mean of its divisors is an integer number (995760).

Almost surely, 2^6609545 is an apocalyptic number.

It is an amenable number.

6609545 is a deficient number, since it is larger than the sum of its proper divisors (1356535).

6609545 is a wasteful number, since it uses less digits than its factorization.

6609545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5775.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 6609545 is about 2570.9035376692. The cubic root of 6609545 is about 187.6681277165.

The spelling of 6609545 in words is "six million, six hundred nine thousand, five hundred forty-five".