3923855 has 32 divisors (see below), whose sum is σ = 5552064. Its totient is φ = 2635776.

The previous prime is 3923839. The next prime is 3923863. The reversal of 3923855 is 5583293.

It is not a de Polignac number, because 3923855 - 2⁴ = 3923839 is a prime.

It is a super-2 number, since 2×3923855² = 30793276122050, which contains 22 as substring.

It is a zygodrome in base 6.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 58532 + ... + 58598.

It is an arithmetic number, because the mean of its divisors is an integer number (173502).

Almost surely, 2^3923855 is an apocalyptic number.

3923855 is a deficient number, since it is larger than the sum of its proper divisors (1628209).

3923855 is a wasteful number, since it uses less digits than its factorization.

3923855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155.

The product of its digits is 32400, while the sum is 35.

The square root of 3923855 is about 1980.8722826068. The cubic root of 3923855 is about 157.7263730612.

It can be divided in two parts, 39238 and 55, that added together give a palindrome (39293).

The spelling of 3923855 in words is "three million, nine hundred twenty-three thousand, eight hundred fifty-five".