3613630309 has 2 divisors, whose sum is σ = 3613630310. Its totient is φ = 3613630308.

The previous prime is 3613630291. The next prime is 3613630357. The reversal of 3613630309 is 9030363163.

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., 3609366084 + 4264225 = 60078^2 + 2065^2 .

It is a cyclic number.

It is not a de Polignac number, because 3613630309 - 2¹⁵ = 3613597541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3613630379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1806815154 + 1806815155.

It is an arithmetic number, because the mean of its divisors is an integer number (1806815155).

Almost surely, 2^3613630309 is an apocalyptic number.

It is an amenable number.

3613630309 is a deficient number, since it is larger than the sum of its proper divisors (1).

3613630309 is an equidigital number, since it uses as much as digits as its factorization.

3613630309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 34.

The square root of 3613630309 is about 60113.4785967340. The cubic root of 3613630309 is about 1534.5506943598.

The spelling of 3613630309 in words is "three billion, six hundred thirteen million, six hundred thirty thousand, three hundred nine".