6825816 has 32 divisors (see below), whose sum is σ = 18961200. Its totient is φ = 2275200.

The previous prime is 6825811. The next prime is 6825827. The reversal of 6825816 is 6185286.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6825811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15585 + ... + 16016.

Almost surely, 2^6825816 is an apocalyptic number.

It is an amenable number.

6825816 is an abundant number, since it is smaller than the sum of its proper divisors (12135384).

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

6825816 is a wasteful number, since it uses less digits than its factorization.

6825816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31616 (or 31606 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 6825816 is about 2612.6262648913. The cubic root of 6825816 is about 189.6930964055.

The spelling of 6825816 in words is "six million, eight hundred twenty-five thousand, eight hundred sixteen".