3856385017 has 2 divisors, whose sum is σ = 3856385018. Its totient is φ = 3856385016.

The previous prime is 3856384979. The next prime is 3856385069. The reversal of 3856385017 is 7105836583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2004890176 + 1851494841 = 44776^2 + 43029^2 .

It is a cyclic number.

It is not a de Polignac number, because 3856385017 - 2¹⁵ = 3856352249 is a prime.

It is not a weakly prime, because it can be changed into another prime (3856355017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1928192508 + 1928192509.

It is an arithmetic number, because the mean of its divisors is an integer number (1928192509).

Almost surely, 2^3856385017 is an apocalyptic number.

It is an amenable number.

3856385017 is a deficient number, since it is larger than the sum of its proper divisors (1).

3856385017 is an equidigital number, since it uses as much as digits as its factorization.

3856385017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 3856385017 is about 62099.7988483055. The cubic root of 3856385017 is about 1568.1711590425.

The spelling of 3856385017 in words is "three billion, eight hundred fifty-six million, three hundred eighty-five thousand, seventeen".