3728265 has 16 divisors (see below), whose sum is σ = 6000000. Its totient is φ = 1976832.

The previous prime is 3728251. The next prime is 3728267. The reversal of 3728265 is 5628273.

3728265 is nontrivially palindromic in base 11.

3728265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3728265 - 2⁹ = 3727753 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 3¹³ + 7⁶ + 2⁶ + 8² + 2¹⁴ + 6⁶ + 5⁹ .

3728265 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728267) 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 15 ways as a sum of consecutive naturals, for example, 2361 + ... + 3609.

It is an arithmetic number, because the mean of its divisors is an integer number (375000).

Almost surely, 2^3728265 is an apocalyptic number.

It is an amenable number.

3728265 is a deficient number, since it is larger than the sum of its proper divisors (2271735).

3728265 is a wasteful number, since it uses less digits than its factorization.

3728265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456.

The product of its digits is 20160, while the sum is 33.

The square root of 3728265 is about 1930.8715648639. The cubic root of 3728265 is about 155.0608848565.

It can be divided in two parts, 3728 and 265, that added together give a palindrome (3993).

The spelling of 3728265 in words is "three million, seven hundred twenty-eight thousand, two hundred sixty-five".