6605461 has 4 divisors (see below), whose sum is σ = 6647692. Its totient is φ = 6563232.

The previous prime is 6605441. The next prime is 6605471. The reversal of 6605461 is 1645066.

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 874225 + 5731236 = 935^2 + 2394^2 .

It is a cyclic number.

It is not a de Polignac number, because 6605461 - 2⁵ = 6605429 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6605411) 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, 20880 + ... + 21193.

It is an arithmetic number, because the mean of its divisors is an integer number (1661923).

Almost surely, 2^6605461 is an apocalyptic number.

It is an amenable number.

6605461 is a deficient number, since it is larger than the sum of its proper divisors (42231).

6605461 is a wasteful number, since it uses less digits than its factorization.

6605461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42230.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 6605461 is about 2570.1091416514. The cubic root of 6605461 is about 187.6294667322.

The spelling of 6605461 in words is "six million, six hundred five thousand, four hundred sixty-one".