6815604 has 48 divisors (see below), whose sum is σ = 16934400. Its totient is φ = 2127456.

The previous prime is 6815603. The next prime is 6815639. The reversal of 6815604 is 4065186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6815603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37987 + ... + 38165.

It is an arithmetic number, because the mean of its divisors is an integer number (352800).

Almost surely, 2^6815604 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 6815604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8467200).

6815604 is an abundant number, since it is smaller than the sum of its proper divisors (10118796).

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

6815604 is a wasteful number, since it uses less digits than its factorization.

6815604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 6815604 is about 2610.6711780690. The cubic root of 6815604 is about 189.5984502001.

The spelling of 6815604 in words is "six million, eight hundred fifteen thousand, six hundred four".