6897727 has 4 divisors (see below), whose sum is σ = 6985120. Its totient is φ = 6810336.

The previous prime is 6897719. The next prime is 6897739. The reversal of 6897727 is 7277986.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7277986 = 2 ⋅3638993.

It is a cyclic number.

It is not a de Polignac number, because 6897727 - 2³ = 6897719 is a prime.

It is a Duffinian number.

6897727 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6897797) 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, 43578 + ... + 43735.

It is an arithmetic number, because the mean of its divisors is an integer number (1746280).

Almost surely, 2^6897727 is an apocalyptic number.

6897727 is a deficient number, since it is larger than the sum of its proper divisors (87393).

6897727 is an equidigital number, since it uses as much as digits as its factorization.

6897727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87392.

The product of its digits is 296352, while the sum is 46.

The square root of 6897727 is about 2626.3524135196. The cubic root of 6897727 is about 190.3569191275.

The spelling of 6897727 in words is "six million, eight hundred ninety-seven thousand, seven hundred twenty-seven".