3835409 has 4 divisors (see below), whose sum is σ = 3861300. Its totient is φ = 3809520.

The previous prime is 3835399. The next prime is 3835439. The reversal of 3835409 is 9045383.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1500625 + 2334784 = 1225^2 + 1528^2 .

It is a cyclic number.

It is not a de Polignac number, because 3835409 - 2¹⁶ = 3769873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3835439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12722 + ... + 13019.

It is an arithmetic number, because the mean of its divisors is an integer number (965325).

Almost surely, 2^3835409 is an apocalyptic number.

It is an amenable number.

3835409 is a deficient number, since it is larger than the sum of its proper divisors (25891).

3835409 is a wasteful number, since it uses less digits than its factorization.

3835409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25890.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 3835409 is about 1958.4200264499. The cubic root of 3835409 is about 156.5322739633.

The spelling of 3835409 in words is "three million, eight hundred thirty-five thousand, four hundred nine".