3948109 has 12 divisors (see below), whose sum is σ = 4413472. Its totient is φ = 3528360.

The previous prime is 3948101. The next prime is 3948121. The reversal of 3948109 is 9018493.

It is not a de Polignac number, because 3948109 - 2³ = 3948101 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

3948109 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3948101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7864 + ... + 8350.

Almost surely, 2^3948109 is an apocalyptic number.

It is an amenable number.

3948109 is a deficient number, since it is larger than the sum of its proper divisors (465363).

3948109 is a wasteful number, since it uses less digits than its factorization.

3948109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 3948109 is about 1986.9849018047. The cubic root of 3948109 is about 158.0506834142.

The spelling of 3948109 in words is "three million, nine hundred forty-eight thousand, one hundred nine".