3923855852 has 48 divisors (see below), whose sum is σ = 7967393280. Its totient is φ = 1656158592.

The previous prime is 3923855849. The next prime is 3923855857. The reversal of 3923855852 is 2585583293.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3923855852.

It is not an unprimeable number, because it can be changed into a prime (3923855857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 652403 + ... + 658389.

It is an arithmetic number, because the mean of its divisors is an integer number (165987360).

Almost surely, 2^3923855852 is an apocalyptic number.

It is an amenable number.

3923855852 is an abundant number, since it is smaller than the sum of its proper divisors (4043537428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3923855852 is a wasteful number, since it uses less digits than its factorization.

3923855852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6350 (or 6348 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 50.

The square root of 3923855852 is about 62640.6884700352. The cubic root of 3923855852 is about 1577.2638447710.

The spelling of 3923855852 in words is "three billion, nine hundred twenty-three million, eight hundred fifty-five thousand, eight hundred fifty-two".