3845863 has 6 divisors (see below), whose sum is σ = 4473816. Its totient is φ = 3296412.

The previous prime is 3845861. The next prime is 3845873. The reversal of 3845863 is 3685483.

It is not a de Polignac number, because 3845863 - 2¹ = 3845861 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 3² + 8 + 4¹⁰ + 5⁹ + 8⁵ + 6⁷ + 3¹² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3845861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39195 + ... + 39292.

It is an arithmetic number, because the mean of its divisors is an integer number (745636).

Almost surely, 2^3845863 is an apocalyptic number.

3845863 is a deficient number, since it is larger than the sum of its proper divisors (627953).

3845863 is an equidigital number, since it uses as much as digits as its factorization.

3845863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78501 (or 78494 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 3845863 is about 1961.0871984693. The cubic root of 3845863 is about 156.6743625816.

The spelling of 3845863 in words is "three million, eight hundred forty-five thousand, eight hundred sixty-three".