3920865313 has 2 divisors, whose sum is σ = 3920865314. Its totient is φ = 3920865312.

The previous prime is 3920865283. The next prime is 3920865331. The reversal of 3920865313 is 3135680293.

Together with next prime (3920865331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3575202849 + 345662464 = 59793^2 + 18592^2 .

It is a cyclic number.

It is not a de Polignac number, because 3920865313 - 2¹³ = 3920857121 is a prime.

It is not a weakly prime, because it can be changed into another prime (3920665313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1960432656 + 1960432657.

It is an arithmetic number, because the mean of its divisors is an integer number (1960432657).

Almost surely, 2^3920865313 is an apocalyptic number.

It is an amenable number.

3920865313 is a deficient number, since it is larger than the sum of its proper divisors (1).

3920865313 is an equidigital number, since it uses as much as digits as its factorization.

3920865313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 3920865313 is about 62616.8133411466. The cubic root of 3920865313 is about 1576.8630427677.

The spelling of 3920865313 in words is "three billion, nine hundred twenty million, eight hundred sixty-five thousand, three hundred thirteen".