3654865673 has 2 divisors, whose sum is σ = 3654865674. Its totient is φ = 3654865672.

The previous prime is 3654865667. The next prime is 3654865681. The reversal of 3654865673 is 3765684563.

3654865673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2437693129 + 1217172544 = 49373^2 + 34888^2 .

It is an emirp because it is prime and its reverse (3765684563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3654865673 - 2³⁰ = 2581123849 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 (3654865633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1827432836 + 1827432837.

It is an arithmetic number, because the mean of its divisors is an integer number (1827432837).

Almost surely, 2^3654865673 is an apocalyptic number.

It is an amenable number.

3654865673 is a deficient number, since it is larger than the sum of its proper divisors (1).

3654865673 is an equidigital number, since it uses as much as digits as its factorization.

3654865673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 53.

The square root of 3654865673 is about 60455.4850530537. The cubic root of 3654865673 is about 1540.3655837805.

The spelling of 3654865673 in words is "three billion, six hundred fifty-four million, eight hundred sixty-five thousand, six hundred seventy-three".