6604997 has 4 divisors (see below), whose sum is σ = 7548576. Its totient is φ = 5661420.

The previous prime is 6604987. The next prime is 6605023. The reversal of 6604997 is 7994066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6604997 - 2¹² = 6600901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6604987) 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, 471779 + ... + 471792.

It is an arithmetic number, because the mean of its divisors is an integer number (1887144).

Almost surely, 2^6604997 is an apocalyptic number.

It is an amenable number.

6604997 is a deficient number, since it is larger than the sum of its proper divisors (943579).

6604997 is an equidigital number, since it uses as much as digits as its factorization.

6604997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943578.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 6604997 is about 2570.0188715260. The cubic root of 6604997 is about 187.6250732911.

The spelling of 6604997 in words is "six million, six hundred four thousand, nine hundred ninety-seven".