3700409 has 2 divisors, whose sum is σ = 3700410. Its totient is φ = 3700408.

The previous prime is 3700397. The next prime is 3700423. The reversal of 3700409 is 9040073.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2839225 + 861184 = 1685^2 + 928^2 .

It is a cyclic number.

It is not a de Polignac number, because 3700409 - 2⁴ = 3700393 is a prime.

It is not a weakly prime, because it can be changed into another prime (3700009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1850204 + 1850205.

It is an arithmetic number, because the mean of its divisors is an integer number (1850205).

Almost surely, 2^3700409 is an apocalyptic number.

It is an amenable number.

3700409 is a deficient number, since it is larger than the sum of its proper divisors (1).

3700409 is an equidigital number, since it uses as much as digits as its factorization.

3700409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 3700409 is about 1923.6447177169. The cubic root of 3700409 is about 154.6737361967.

The spelling of 3700409 in words is "three million, seven hundred thousand, four hundred nine".