3826409 has 2 divisors, whose sum is σ = 3826410. Its totient is φ = 3826408.

The previous prime is 3826399. The next prime is 3826439. The reversal of 3826409 is 9046283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3052009 + 774400 = 1747^2 + 880^2 .

It is an emirp because it is prime and its reverse (9046283) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3826409 - 2⁴ = 3826393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3826439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1913204 + 1913205.

It is an arithmetic number, because the mean of its divisors is an integer number (1913205).

Almost surely, 2^3826409 is an apocalyptic number.

It is an amenable number.

3826409 is a deficient number, since it is larger than the sum of its proper divisors (1).

3826409 is an equidigital number, since it uses as much as digits as its factorization.

3826409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 3826409 is about 1956.1209062837. The cubic root of 3826409 is about 156.4097408480.

The spelling of 3826409 in words is "three million, eight hundred twenty-six thousand, four hundred nine".