6601697 has 4 divisors (see below), whose sum is σ = 6762756. Its totient is φ = 6440640.

The previous prime is 6601691. The next prime is 6601703. The reversal of 6601697 is 7961066.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (6601691) and next prime (6601703).

It can be written as a sum of positive squares in 2 ways, for example, as 271441 + 6330256 = 521^2 + 2516^2 .

It is a cyclic number.

It is not a de Polignac number, because 6601697 - 2⁶ = 6601633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6601691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80468 + ... + 80549.

It is an arithmetic number, because the mean of its divisors is an integer number (1690689).

Almost surely, 2^6601697 is an apocalyptic number.

It is an amenable number.

6601697 is a deficient number, since it is larger than the sum of its proper divisors (161059).

6601697 is a wasteful number, since it uses less digits than its factorization.

6601697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161058.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 6601697 is about 2569.3767726824. The cubic root of 6601697 is about 187.5938208981.

The spelling of 6601697 in words is "six million, six hundred one thousand, six hundred ninety-seven".