3803728 has 10 divisors (see below), whose sum is σ = 7369754. Its totient is φ = 1901856.

The previous prime is 3803707. The next prime is 3803749. The reversal of 3803728 is 8273083.

It is an interprime number because it is at equal distance from previous prime (3803707) and next prime (3803749).

It can be written as a sum of positive squares in only one way, i.e., 2334784 + 1468944 = 1528^2 + 1212^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3803728.

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, 118851 + ... + 118882.

Almost surely, 2^3803728 is an apocalyptic number.

It is an amenable number.

3803728 is a deficient number, since it is larger than the sum of its proper divisors (3566026).

3803728 is a wasteful number, since it uses less digits than its factorization.

3803728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237741 (or 237735 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 3803728 is about 1950.3148463774. The cubic root of 3803728 is about 156.1000891772.

The spelling of 3803728 in words is "three million, eight hundred three thousand, seven hundred twenty-eight".