6994728 has 128 divisors (see below), whose sum is σ = 21772800. Its totient is φ = 2066688.

The previous prime is 6994727. The next prime is 6994751. The reversal of 6994728 is 8274996.

It is a happy number.

Its product of digits (217728) is a multiple of the sum of its prime factors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6994727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131950 + ... + 132002.

It is an arithmetic number, because the mean of its divisors is an integer number (170100).

Almost surely, 2^6994728 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 6994728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10886400).

6994728 is an abundant number, since it is smaller than the sum of its proper divisors (14778072).

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

6994728 is a wasteful number, since it uses less digits than its factorization.

6994728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 118 counting only the distinct ones).

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

The square root of 6994728 is about 2644.7548090513. The cubic root of 6994728 is about 191.2450825341.

The spelling of 6994728 in words is "six million, nine hundred ninety-four thousand, seven hundred twenty-eight".