3548728 has 8 divisors (see below), whose sum is σ = 6653880. Its totient is φ = 1774360.

The previous prime is 3548723. The next prime is 3548731. The reversal of 3548728 is 8278453.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3548723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221788 + ... + 221803.

It is an arithmetic number, because the mean of its divisors is an integer number (831735).

Almost surely, 2^3548728 is an apocalyptic number.

It is an amenable number.

3548728 is a deficient number, since it is larger than the sum of its proper divisors (3105152).

3548728 is a wasteful number, since it uses less digits than its factorization.

3548728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443597 (or 443593 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 3548728 is about 1883.8067841475. The cubic root of 3548728 is about 152.5308080730.

The spelling of 3548728 in words is "three million, five hundred forty-eight thousand, seven hundred twenty-eight".