3856805823 has 8 divisors (see below), whose sum is σ = 5537977648. Its totient is φ = 2373418944.

The previous prime is 3856805803. The next prime is 3856805867. The reversal of 3856805823 is 3285086583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3856805823 - 2⁵ = 3856805791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856805803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49446190 + ... + 49446267.

It is an arithmetic number, because the mean of its divisors is an integer number (692247206).

Almost surely, 2^3856805823 is an apocalyptic number.

3856805823 is a deficient number, since it is larger than the sum of its proper divisors (1681171825).

3856805823 is a wasteful number, since it uses less digits than its factorization.

3856805823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98892473.

The product of its (nonzero) digits is 1382400, while the sum is 48.

The square root of 3856805823 is about 62103.1868989024. The cubic root of 3856805823 is about 1568.2281962098.

The spelling of 3856805823 in words is "three billion, eight hundred fifty-six million, eight hundred five thousand, eight hundred twenty-three".