6680436 has 48 divisors (see below), whose sum is σ = 18095616. Its totient is φ = 1878624.

The previous prime is 6680431. The next prime is 6680441. The reversal of 6680436 is 6340866.

It is an interprime number because it is at equal distance from previous prime (6680431) and next prime (6680441).

It is a junction number, because it is equal to n+sod(n) for n = 6680397 and 6680406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6680431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5035 + ... + 6221.

It is an arithmetic number, because the mean of its divisors is an integer number (376992).

Almost surely, 2^6680436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6680436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9047808).

6680436 is an abundant number, since it is smaller than the sum of its proper divisors (11415180).

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

6680436 is a wasteful number, since it uses less digits than its factorization.

6680436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268 (or 1266 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 6680436 is about 2584.6539420201. The cubic root of 6680436 is about 188.3366910584.

The spelling of 6680436 in words is "six million, six hundred eighty thousand, four hundred thirty-six".