6609481 has 4 divisors (see below), whose sum is σ = 6998292. Its totient is φ = 6220672.

The previous prime is 6609467. The next prime is 6609503. The reversal of 6609481 is 1849066.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3936256 + 2673225 = 1984^2 + 1635^2 .

It is a cyclic number.

It is not a de Polignac number, because 6609481 - 2⁷ = 6609353 is a prime.

It is a super-2 number, since 2×6609481² = 87370478178722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6609181) 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 3 ways as a sum of consecutive naturals, for example, 194380 + ... + 194413.

It is an arithmetic number, because the mean of its divisors is an integer number (1749573).

Almost surely, 2^6609481 is an apocalyptic number.

It is an amenable number.

6609481 is a deficient number, since it is larger than the sum of its proper divisors (388811).

6609481 is a wasteful number, since it uses less digits than its factorization.

6609481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388810.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 6609481 is about 2570.8910906532. The cubic root of 6609481 is about 187.6675219865.

The spelling of 6609481 in words is "six million, six hundred nine thousand, four hundred eighty-one".