3855023863 has 2 divisors, whose sum is σ = 3855023864. Its totient is φ = 3855023862.

The previous prime is 3855023857. The next prime is 3855023897. The reversal of 3855023863 is 3683205583.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3855023863 - 2⁹ = 3855023351 is a prime.

It is a super-2 number, since 2×3855023863² = 29722417968598885538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3855023803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1927511931 + 1927511932.

It is an arithmetic number, because the mean of its divisors is an integer number (1927511932).

Almost surely, 2^3855023863 is an apocalyptic number.

3855023863 is a deficient number, since it is larger than the sum of its proper divisors (1).

3855023863 is an equidigital number, since it uses as much as digits as its factorization.

3855023863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 43.

The square root of 3855023863 is about 62088.8384735936. The cubic root of 3855023863 is about 1567.9866361781.

The spelling of 3855023863 in words is "three billion, eight hundred fifty-five million, twenty-three thousand, eight hundred sixty-three".