3736409 has 2 divisors, whose sum is σ = 3736410. Its totient is φ = 3736408.

The previous prime is 3736393. The next prime is 3736423. The reversal of 3736409 is 9046373.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3553225 + 183184 = 1885^2 + 428^2 .

It is a cyclic number.

It is not a de Polignac number, because 3736409 - 2⁴ = 3736393 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3736429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1868204 + 1868205.

It is an arithmetic number, because the mean of its divisors is an integer number (1868205).

Almost surely, 2^3736409 is an apocalyptic number.

It is an amenable number.

3736409 is a deficient number, since it is larger than the sum of its proper divisors (1).

3736409 is an equidigital number, since it uses as much as digits as its factorization.

3736409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 3736409 is about 1932.9793066663. The cubic root of 3736409 is about 155.1737074398.

The spelling of 3736409 in words is "three million, seven hundred thirty-six thousand, four hundred nine".