3650509 has 2 divisors, whose sum is σ = 3650510. Its totient is φ = 3650508.

The previous prime is 3650503. The next prime is 3650533. The reversal of 3650509 is 9050563.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2316484 + 1334025 = 1522^2 + 1155^2 .

It is an emirp because it is prime and its reverse (9050563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3650509 - 2³ = 3650501 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3650501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1825254 + 1825255.

It is an arithmetic number, because the mean of its divisors is an integer number (1825255).

Almost surely, 2^3650509 is an apocalyptic number.

It is an amenable number.

3650509 is a deficient number, since it is larger than the sum of its proper divisors (1).

3650509 is an equidigital number, since it uses as much as digits as its factorization.

3650509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 3650509 is about 1910.6305241988. The cubic root of 3650509 is about 153.9753291564.

The spelling of 3650509 in words is "three million, six hundred fifty thousand, five hundred nine".