6609955 has 8 divisors (see below), whose sum is σ = 8653104. Its totient is φ = 4807200.

The previous prime is 6609893. The next prime is 6609971. The reversal of 6609955 is 5599066.

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

It is not a de Polignac number, because 6609955 - 2⁹ = 6609443 is a prime.

It is a Duffinian 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, 60036 + ... + 60145.

It is an arithmetic number, because the mean of its divisors is an integer number (1081638).

Almost surely, 2^6609955 is an apocalyptic number.

6609955 is a deficient number, since it is larger than the sum of its proper divisors (2043149).

6609955 is a wasteful number, since it uses less digits than its factorization.

6609955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120197.

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 6609955 is about 2570.9832749359. The cubic root of 6609955 is about 187.6720080815.

It can be divided in two parts, 6 and 609955, that added together give a square (609961 = 781²).

The spelling of 6609955 in words is "six million, six hundred nine thousand, nine hundred fifty-five".