6815412 has 54 divisors (see below), whose sum is σ = 17891874. Its totient is φ = 2187360.

The previous prime is 6815399. The next prime is 6815447. The reversal of 6815412 is 2145186.

It can be written as a sum of positive squares in only one way, i.e., 6780816 + 34596 = 2604^2 + 186^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 34498 + ... + 34694.

It is an arithmetic number, because the mean of its divisors is an integer number (331331).

Almost surely, 2^6815412 is an apocalyptic number.

6815412 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6815412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8945937).

6815412 is an abundant number, since it is smaller than the sum of its proper divisors (11076462).

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

6815412 is a wasteful number, since it uses less digits than its factorization.

6815412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 233 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 6815412 is about 2610.6344056570. The cubic root of 6815412 is about 189.5966698128.

It can be divided in two parts, 6815 and 412, that added together give a palindrome (7227).

The spelling of 6815412 in words is "six million, eight hundred fifteen thousand, four hundred twelve".