6605997 has 8 divisors (see below), whose sum is σ = 9111840. Its totient is φ = 4252080.

The previous prime is 6605987. The next prime is 6606011. The reversal of 6605997 is 7995066.

6605997 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6605997 - 2⁶ = 6605933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6605917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37879 + ... + 38052.

It is an arithmetic number, because the mean of its divisors is an integer number (1138980).

Almost surely, 2^6605997 is an apocalyptic number.

It is an amenable number.

6605997 is a deficient number, since it is larger than the sum of its proper divisors (2505843).

6605997 is a wasteful number, since it uses less digits than its factorization.

6605997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75963.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 6605997 is about 2570.2134152634. The cubic root of 6605997 is about 187.6345416580.

The spelling of 6605997 in words is "six million, six hundred five thousand, nine hundred ninety-seven".