3930909 has 8 divisors (see below), whose sum is σ = 5260992. Its totient is φ = 2610720.

The previous prime is 3930887. The next prime is 3930919. The reversal of 3930909 is 9090393.

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

It is not a de Polignac number, because 3930909 - 2⁸ = 3930653 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

3930909 is a modest number, since divided by 909 gives 393 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 3930909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3930919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1489 + ... + 3174.

It is an arithmetic number, because the mean of its divisors is an integer number (657624).

Almost surely, 2^3930909 is an apocalyptic number.

It is an amenable number.

3930909 is a deficient number, since it is larger than the sum of its proper divisors (1330083).

3930909 is a wasteful number, since it uses less digits than its factorization.

3930909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4947.

The product of its (nonzero) digits is 6561, while the sum is 33.

The square root of 3930909 is about 1982.6520118266. The cubic root of 3930909 is about 157.8208325307.

The spelling of 3930909 in words is "three million, nine hundred thirty thousand, nine hundred nine".