6949728 has 72 divisors (see below), whose sum is σ = 20147400. Its totient is φ = 2271744.

The previous prime is 6949727. The next prime is 6949741. The reversal of 6949728 is 8279496.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6949721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16788 + ... + 17196.

It is an arithmetic number, because the mean of its divisors is an integer number (279825).

Almost surely, 2^6949728 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 6949728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10073700).

6949728 is an abundant number, since it is smaller than the sum of its proper divisors (13197672).

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

6949728 is a wasteful number, since it uses less digits than its factorization.

6949728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 473 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 6949728 is about 2636.2336770476. The cubic root of 6949728 is about 190.8340801167.

The spelling of 6949728 in words is "six million, nine hundred forty-nine thousand, seven hundred twenty-eight".