6821696 has 28 divisors (see below), whose sum is σ = 15471648. Its totient is φ = 2923392.

The previous prime is 6821693. The next prime is 6821701. The reversal of 6821696 is 6961286.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6821693) 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, 7166 + ... + 8061.

Almost surely, 2^6821696 is an apocalyptic number.

It is an amenable number.

6821696 is an abundant number, since it is smaller than the sum of its proper divisors (8649952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6821696 is a wasteful number, since it uses less digits than its factorization.

6821696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15246 (or 15236 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 6821696 is about 2611.8376672374. The cubic root of 6821696 is about 189.6549230524.

The spelling of 6821696 in words is "six million, eight hundred twenty-one thousand, six hundred ninety-six".