6609455 has 4 divisors (see below), whose sum is σ = 7931352. Its totient is φ = 5287560.

The previous prime is 6609443. The next prime is 6609457. The reversal of 6609455 is 5549066.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6609455 - 2⁴ = 6609439 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6609457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660941 + ... + 660950.

It is an arithmetic number, because the mean of its divisors is an integer number (1982838).

Almost surely, 2^6609455 is an apocalyptic number.

6609455 is a deficient number, since it is larger than the sum of its proper divisors (1321897).

6609455 is a wasteful number, since it uses less digits than its factorization.

6609455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321896.

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

The square root of 6609455 is about 2570.8860340357. The cubic root of 6609455 is about 187.6672759076.

The spelling of 6609455 in words is "six million, six hundred nine thousand, four hundred fifty-five".