6823638 has 24 divisors (see below), whose sum is σ = 14857128. Its totient is φ = 2263392.

The previous prime is 6823573. The next prime is 6823657. The reversal of 6823638 is 8363286.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6 + 8⁷ + 2²¹ + 3⁶ + 6 + 3¹² + 8⁷ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3381 + ... + 5007.

It is an arithmetic number, because the mean of its divisors is an integer number (619047).

Almost surely, 2^6823638 is an apocalyptic number.

6823638 is an abundant number, since it is smaller than the sum of its proper divisors (8033490).

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

6823638 is a wasteful number, since it uses less digits than its factorization.

6823638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868 (or 1865 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 6823638 is about 2612.2094096760. The cubic root of 6823638 is about 189.6729183288.

The spelling of 6823638 in words is "six million, eight hundred twenty-three thousand, six hundred thirty-eight".