3748909 has 4 divisors (see below), whose sum is σ = 3946240. Its totient is φ = 3551580.

The previous prime is 3748907. The next prime is 3748933. The reversal of 3748909 is 9098473.

3748909 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3748909 - 2¹ = 3748907 is a prime.

It is a Duffinian number.

3748909 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3748903) 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, 98637 + ... + 98674.

It is an arithmetic number, because the mean of its divisors is an integer number (986560).

Almost surely, 2^3748909 is an apocalyptic number.

It is an amenable number.

3748909 is a deficient number, since it is larger than the sum of its proper divisors (197331).

3748909 is a wasteful number, since it uses less digits than its factorization.

3748909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197330.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 3748909 is about 1936.2099576234. The cubic root of 3748909 is about 155.3465572112.

The spelling of 3748909 in words is "three million, seven hundred forty-eight thousand, nine hundred nine".