3311728 has 20 divisors (see below), whose sum is σ = 7333360. Its totient is φ = 1419264.

The previous prime is 3311723. The next prime is 3311741. The reversal of 3311728 is 8271133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3311723) 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, 14673 + ... + 14896.

It is an arithmetic number, because the mean of its divisors is an integer number (366668).

Almost surely, 2^3311728 is an apocalyptic number.

It is an amenable number.

3311728 is an abundant number, since it is smaller than the sum of its proper divisors (4021632).

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

3311728 is a wasteful number, since it uses less digits than its factorization.

3311728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29584 (or 29578 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 3311728 is about 1819.8153752510. The cubic root of 3311728 is about 149.0567175933.

The spelling of 3311728 in words is "three million, three hundred eleven thousand, seven hundred twenty-eight".