3812409 has 6 divisors (see below), whose sum is σ = 5506826. Its totient is φ = 2541600.

The previous prime is 3812399. The next prime is 3812441. The reversal of 3812409 is 9042183.

3812409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3504384 + 308025 = 1872^2 + 555^2 .

It is not a de Polignac number, because 3812409 - 2⁸ = 3812153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3812209) 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 5 ways as a sum of consecutive naturals, for example, 211792 + ... + 211809.

Almost surely, 2^3812409 is an apocalyptic number.

It is an amenable number.

3812409 is a deficient number, since it is larger than the sum of its proper divisors (1694417).

3812409 is a wasteful number, since it uses less digits than its factorization.

3812409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423607 (or 423604 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 3812409 is about 1952.5391161255. The cubic root of 3812409 is about 156.2187512976.

The spelling of 3812409 in words is "three million, eight hundred twelve thousand, four hundred nine".