3684774689 has 2 divisors, whose sum is σ = 3684774690. Its totient is φ = 3684774688.

The previous prime is 3684774641. The next prime is 3684774727. The reversal of 3684774689 is 9864774863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2661734464 + 1023040225 = 51592^2 + 31985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3684774689 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3684774589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1842387344 + 1842387345.

It is an arithmetic number, because the mean of its divisors is an integer number (1842387345).

Almost surely, 2^3684774689 is an apocalyptic number.

It is an amenable number.

3684774689 is a deficient number, since it is larger than the sum of its proper divisors (1).

3684774689 is an equidigital number, since it uses as much as digits as its factorization.

3684774689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48771072, while the sum is 62.

The square root of 3684774689 is about 60702.3450041265. The cubic root of 3684774689 is about 1544.5559535644. Note that the first 3 decimals are identical.

The spelling of 3684774689 in words is "three billion, six hundred eighty-four million, seven hundred seventy-four thousand, six hundred eighty-nine".