3611728 has 10 divisors (see below), whose sum is σ = 6997754. Its totient is φ = 1805856.

The previous prime is 3611719. The next prime is 3611761. The reversal of 3611728 is 8271163.

It can be written as a sum of positive squares in only one way, i.e., 1993744 + 1617984 = 1412^2 + 1272^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3611696 and 3611705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112851 + ... + 112882.

Almost surely, 2^3611728 is an apocalyptic number.

It is an amenable number.

3611728 is a deficient number, since it is larger than the sum of its proper divisors (3386026).

3611728 is a wasteful number, since it uses less digits than its factorization.

3611728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225741 (or 225735 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 3611728 is about 1900.4546824379. The cubic root of 3611728 is about 153.4281371293.

The spelling of 3611728 in words is "three million, six hundred eleven thousand, seven hundred twenty-eight".