3728455 has 8 divisors (see below), whose sum is σ = 4507632. Its totient is φ = 2960448.

The previous prime is 3728447. The next prime is 3728471. The reversal of 3728455 is 5548273.

It is a happy number.

3728455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3728455 - 2³ = 3728447 is a prime.

It is a Duffinian number.

3728455 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3728455.

It is a congruent number.

It is an unprimeable number.

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, 2037 + ... + 3406.

It is an arithmetic number, because the mean of its divisors is an integer number (563454).

Almost surely, 2^3728455 is an apocalyptic number.

3728455 is a deficient number, since it is larger than the sum of its proper divisors (779177).

3728455 is a wasteful number, since it uses less digits than its factorization.

3728455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5585.

The product of its digits is 33600, while the sum is 34.

The square root of 3728455 is about 1930.9207648166. The cubic root of 3728455 is about 155.0635188849.

The spelling of 3728455 in words is "three million, seven hundred twenty-eight thousand, four hundred fifty-five".