6438696 has 64 divisors (see below), whose sum is σ = 18187200. Its totient is φ = 1883840.

The previous prime is 6438661. The next prime is 6438697. The reversal of 6438696 is 6968346.

It is not an unprimeable number, because it can be changed into a prime (6438697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222010 + ... + 222038.

It is an arithmetic number, because the mean of its divisors is an integer number (284175).

Almost surely, 2^6438696 is an apocalyptic number.

6438696 is a gapful number since it is divisible by the number (66) 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 6438696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9093600).

6438696 is an abundant number, since it is smaller than the sum of its proper divisors (11748504).

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

6438696 is a wasteful number, since it uses less digits than its factorization.

6438696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 45 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 6438696 is about 2537.4585710904. The cubic root of 6438696 is about 186.0369911398.

It can be divided in two parts, 643 and 8696, that added together give a palindrome (9339).

The spelling of 6438696 in words is "six million, four hundred thirty-eight thousand, six hundred ninety-six".