3706728 has 32 divisors (see below), whose sum is σ = 9495360. Its totient is φ = 1205120.

The previous prime is 3706723. The next prime is 3706733. The reversal of 3706728 is 8276073.

3706728 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3706723) and next prime (3706733).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3706723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 900 + ... + 2867.

It is an arithmetic number, because the mean of its divisors is an integer number (296730).

Almost surely, 2^3706728 is an apocalyptic number.

It is an amenable number.

3706728 is an abundant number, since it is smaller than the sum of its proper divisors (5788632).

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

3706728 is a wasteful number, since it uses less digits than its factorization.

3706728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3817 (or 3813 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 3706728 is about 1925.2864721906. The cubic root of 3706728 is about 154.7617289496.

The spelling of 3706728 in words is "three million, seven hundred six thousand, seven hundred twenty-eight".