3856976993 has 2 divisors, whose sum is σ = 3856976994. Its totient is φ = 3856976992.

The previous prime is 3856976971. The next prime is 3856977011. The reversal of 3856976993 is 3996796583.

3856976993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3818251264 + 38725729 = 61792^2 + 6223^2 .

It is a cyclic number.

It is not a de Polignac number, because 3856976993 - 2¹² = 3856972897 is a prime.

It is not a weakly prime, because it can be changed into another prime (3856976093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1928488496 + 1928488497.

It is an arithmetic number, because the mean of its divisors is an integer number (1928488497).

Almost surely, 2^3856976993 is an apocalyptic number.

It is an amenable number.

3856976993 is a deficient number, since it is larger than the sum of its proper divisors (1).

3856976993 is an equidigital number, since it uses as much as digits as its factorization.

3856976993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66134880, while the sum is 65.

The square root of 3856976993 is about 62104.5649932435. The cubic root of 3856976993 is about 1568.2513958610.

The spelling of 3856976993 in words is "three billion, eight hundred fifty-six million, nine hundred seventy-six thousand, nine hundred ninety-three".