3728349 has 24 divisors (see below), whose sum is σ = 5692960. Its totient is φ = 2437776.

The previous prime is 3728317. The next prime is 3728357. The reversal of 3728349 is 9438273.

It is not a de Polignac number, because 3728349 - 2⁵ = 3728317 is a prime.

It is a Duffinian number.

3728349 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16167 + ... + 16395.

Almost surely, 2^3728349 is an apocalyptic number.

It is an amenable number.

3728349 is a deficient number, since it is larger than the sum of its proper divisors (1964611).

3728349 is an equidigital number, since it uses as much as digits as its factorization.

3728349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 299 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 3728349 is about 1930.8933165766. The cubic root of 3728349 is about 155.0620493854.

The spelling of 3728349 in words is "three million, seven hundred twenty-eight thousand, three hundred forty-nine".