6685396 has 6 divisors (see below), whose sum is σ = 11699450. Its totient is φ = 3342696.

The previous prime is 6685391. The next prime is 6685409. The reversal of 6685396 is 6935866.

6685396 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4080400 + 2604996 = 2020^2 + 1614^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6685391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835671 + ... + 835678.

Almost surely, 2^6685396 is an apocalyptic number.

It is an amenable number.

6685396 is a deficient number, since it is larger than the sum of its proper divisors (5014054).

6685396 is a wasteful number, since it uses less digits than its factorization.

6685396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671353 (or 1671351 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 6685396 is about 2585.6132734808. The cubic root of 6685396 is about 188.3832907559.

The spelling of 6685396 in words is "six million, six hundred eighty-five thousand, three hundred ninety-six".