3738409 has 2 divisors, whose sum is σ = 3738410. Its totient is φ = 3738408.

The previous prime is 3738401. The next prime is 3738431. The reversal of 3738409 is 9048373.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3515625 + 222784 = 1875^2 + 472^2 .

It is a cyclic number.

It is not a de Polignac number, because 3738409 - 2³ = 3738401 is a prime.

It is not a weakly prime, because it can be changed into another prime (3738401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1869204 + 1869205.

It is an arithmetic number, because the mean of its divisors is an integer number (1869205).

Almost surely, 2^3738409 is an apocalyptic number.

It is an amenable number.

3738409 is a deficient number, since it is larger than the sum of its proper divisors (1).

3738409 is an equidigital number, since it uses as much as digits as its factorization.

3738409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 3738409 is about 1933.4965735682. The cubic root of 3738409 is about 155.2013892824.

The spelling of 3738409 in words is "three million, seven hundred thirty-eight thousand, four hundred nine".