3695728 has 20 divisors (see below), whose sum is σ = 7537960. Its totient is φ = 1750464.

The previous prime is 3695717. The next prime is 3695729. The reversal of 3695728 is 8275963.

3695728 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3695729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5775 + ... + 6382.

It is an arithmetic number, because the mean of its divisors is an integer number (376898).

Almost surely, 2^3695728 is an apocalyptic number.

3695728 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3695728 is an abundant number, since it is smaller than the sum of its proper divisors (3842232).

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

3695728 is a wasteful number, since it uses less digits than its factorization.

3695728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12184 (or 12178 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 3695728 is about 1922.4276319279. The cubic root of 3695728 is about 154.6084881596.

The spelling of 3695728 in words is "three million, six hundred ninety-five thousand, seven hundred twenty-eight".