3689303581 has 2 divisors, whose sum is σ = 3689303582. Its totient is φ = 3689303580.

The previous prime is 3689303567. The next prime is 3689303599. The reversal of 3689303581 is 1853039863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1894425625 + 1794877956 = 43525^2 + 42366^2 .

It is a cyclic number.

It is not a de Polignac number, because 3689303581 - 2¹⁵ = 3689270813 is a prime.

It is a super-2 number, since 2×3689303581² = 27221921825558847122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3689303381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1844651790 + 1844651791.

It is an arithmetic number, because the mean of its divisors is an integer number (1844651791).

Almost surely, 2^3689303581 is an apocalyptic number.

It is an amenable number.

3689303581 is a deficient number, since it is larger than the sum of its proper divisors (1).

3689303581 is an equidigital number, since it uses as much as digits as its factorization.

3689303581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 3689303581 is about 60739.6376429758. The cubic root of 3689303581 is about 1545.1884900408.

The spelling of 3689303581 in words is "three billion, six hundred eighty-nine million, three hundred three thousand, five hundred eighty-one".