3503728 has 20 divisors (see below), whose sum is σ = 7084368. Its totient is φ = 1675520.

The previous prime is 3503719. The next prime is 3503761. The reversal of 3503728 is 8273053.

It is a super-2 number, since 2×3503728² = 24552219795968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3503696 and 3503705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4393 + ... + 5128.

Almost surely, 2^3503728 is an apocalyptic number.

It is an amenable number.

3503728 is an abundant number, since it is smaller than the sum of its proper divisors (3580640).

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

3503728 is a wasteful number, since it uses less digits than its factorization.

3503728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9552 (or 9546 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 3503728 is about 1871.8247781243. The cubic root of 3503728 is about 151.8833361499.

The spelling of 3503728 in words is "three million, five hundred three thousand, seven hundred twenty-eight".