6697871 has 4 divisors (see below), whose sum is σ = 6704544. Its totient is φ = 6691200.

The previous prime is 6697843. The next prime is 6697877. The reversal of 6697871 is 1787966.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6697871 - 2¹⁴ = 6681487 is a prime.

It is a super-2 number, since 2×6697871² = 89722951865282, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6697877) 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, 1490 + ... + 3951.

It is an arithmetic number, because the mean of its divisors is an integer number (1676136).

Almost surely, 2^6697871 is an apocalyptic number.

6697871 is a deficient number, since it is larger than the sum of its proper divisors (6673).

6697871 is a wasteful number, since it uses less digits than its factorization.

6697871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6672.

The product of its digits is 127008, while the sum is 44.

The square root of 6697871 is about 2588.0245362052. The cubic root of 6697871 is about 188.5003928348.

The spelling of 6697871 in words is "six million, six hundred ninety-seven thousand, eight hundred seventy-one".