3766409 has 2 divisors, whose sum is σ = 3766410. Its totient is φ = 3766408.

The previous prime is 3766397. The next prime is 3766417. The reversal of 3766409 is 9046673.

3766409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3763600 + 2809 = 1940^2 + 53^2 .

It is a cyclic number.

It is not a de Polignac number, because 3766409 - 2⁸ = 3766153 is a prime.

It is not a weakly prime, because it can be changed into another prime (3766459) 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 as a sum of consecutive naturals, namely, 1883204 + 1883205.

It is an arithmetic number, because the mean of its divisors is an integer number (1883205).

Almost surely, 2^3766409 is an apocalyptic number.

It is an amenable number.

3766409 is a deficient number, since it is larger than the sum of its proper divisors (1).

3766409 is an equidigital number, since it uses as much as digits as its factorization.

3766409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 3766409 is about 1940.7238340372. The cubic root of 3766409 is about 155.5879025891.

The spelling of 3766409 in words is "three million, seven hundred sixty-six thousand, four hundred nine".