3728413 has 4 divisors (see below), whose sum is σ = 4015228. Its totient is φ = 3441600.

The previous prime is 3728411. The next prime is 3728429. The reversal of 3728413 is 3148273.

3728413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2424249 + 1304164 = 1557^2 + 1142^2 .

It is a cyclic number.

It is not a de Polignac number, because 3728413 - 2¹ = 3728411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728411) 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 3 ways as a sum of consecutive naturals, for example, 143388 + ... + 143413.

It is an arithmetic number, because the mean of its divisors is an integer number (1003807).

Almost surely, 2^3728413 is an apocalyptic number.

It is an amenable number.

3728413 is a deficient number, since it is larger than the sum of its proper divisors (286815).

3728413 is a wasteful number, since it uses less digits than its factorization.

3728413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286814.

The product of its digits is 4032, while the sum is 28.

The square root of 3728413 is about 1930.9098891455. The cubic root of 3728413 is about 155.0629366337.

The spelling of 3728413 in words is "three million, seven hundred twenty-eight thousand, four hundred thirteen".