6604481 has 4 divisors (see below), whose sum is σ = 7112532. Its totient is φ = 6096432.

The previous prime is 6604471. The next prime is 6604561. The reversal of 6604481 is 1844066.

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 379456 + 6225025 = 616^2 + 2495^2 .

It is a cyclic number.

It is not a de Polignac number, because 6604481 - 2¹⁸ = 6342337 is a prime.

It is a super-2 number, since 2×6604481² = 87238338558722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6604421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254006 + ... + 254031.

It is an arithmetic number, because the mean of its divisors is an integer number (1778133).

Almost surely, 2^6604481 is an apocalyptic number.

It is an amenable number.

6604481 is a deficient number, since it is larger than the sum of its proper divisors (508051).

6604481 is a wasteful number, since it uses less digits than its factorization.

6604481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508050.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 6604481 is about 2569.9184811974. The cubic root of 6604481 is about 187.6201872400.

The spelling of 6604481 in words is "six million, six hundred four thousand, four hundred eighty-one".