3835209 has 16 divisors (see below), whose sum is σ = 5882240. Its totient is φ = 2177280.

The previous prime is 3835199. The next prime is 3835231. The reversal of 3835209 is 9025383.

It is a happy number.

It is not a de Polignac number, because 3835209 - 2⁸ = 3834953 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3835259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3297 + ... + 4305.

It is an arithmetic number, because the mean of its divisors is an integer number (367640).

Almost surely, 2^3835209 is an apocalyptic number.

It is an amenable number.

3835209 is a deficient number, since it is larger than the sum of its proper divisors (2047031).

3835209 is a wasteful number, since it uses less digits than its factorization.

3835209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 3835209 is about 1958.3689642149. The cubic root of 3835209 is about 156.5295530888.

The spelling of 3835209 in words is "three million, eight hundred thirty-five thousand, two hundred nine".