6739968 has 48 divisors (see below), whose sum is σ = 17985240. Its totient is φ = 2244608.

The previous prime is 6739963. The next prime is 6739969. The reversal of 6739968 is 8699376.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6739963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5596 + ... + 6692.

Almost surely, 2^6739968 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 6739968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8992620).

6739968 is an abundant number, since it is smaller than the sum of its proper divisors (11245272).

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

6739968 is a wasteful number, since it uses less digits than its factorization.

6739968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122 (or 1102 counting only the distinct ones).

The product of its digits is 489888, while the sum is 48.

The square root of 6739968 is about 2596.1448341724. The cubic root of 6739968 is about 188.8944849297.

The spelling of 6739968 in words is "six million, seven hundred thirty-nine thousand, nine hundred sixty-eight".