3113728 has 18 divisors (see below), whose sum is σ = 6215804. Its totient is φ = 1556736.

The previous prime is 3113723. The next prime is 3113767. The reversal of 3113728 is 8273113.

It is not an unprimeable number, because it can be changed into a prime (3113723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5826 + ... + 6337.

Almost surely, 2^3113728 is an apocalyptic number.

It is an amenable number.

3113728 is a deficient number, since it is larger than the sum of its proper divisors (3102076).

3113728 is an equidigital number, since it uses as much as digits as its factorization.

3113728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12179 (or 12165 counting only the distinct ones).

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

The square root of 3113728 is about 1764.5758697205. The cubic root of 3113728 is about 146.0248909836.

The spelling of 3113728 in words is "three million, one hundred thirteen thousand, seven hundred twenty-eight".