6813396 has 60 divisors (see below), whose sum is σ = 18874548. Its totient is φ = 2135808.

The previous prime is 6813371. The next prime is 6813403. The reversal of 6813396 is 6933186.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5225796 + 1587600 = 2286^2 + 1260^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 6813396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4890 + ... + 6126.

Almost surely, 2^6813396 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 6813396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9437274).

6813396 is an abundant number, since it is smaller than the sum of its proper divisors (12061152).

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

6813396 is a wasteful number, since it uses less digits than its factorization.

6813396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270 (or 1259 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 6813396 is about 2610.2482640546. The cubic root of 6813396 is about 189.5779737271.

The spelling of 6813396 in words is "six million, eight hundred thirteen thousand, three hundred ninety-six".