3955885 has 16 divisors (see below), whose sum is σ = 5080320. Its totient is φ = 2949760.

The previous prime is 3955877. The next prime is 3955909. The reversal of 3955885 is 5885593.

It is a happy number.

It is not a de Polignac number, because 3955885 - 2³ = 3955877 is a prime.

It is a super-2 number, since 2×3955885² = 31298052266450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4296 + ... + 5134.

It is an arithmetic number, because the mean of its divisors is an integer number (317520).

Almost surely, 2^3955885 is an apocalyptic number.

It is an amenable number.

3955885 is a deficient number, since it is larger than the sum of its proper divisors (1124435).

3955885 is a wasteful number, since it uses less digits than its factorization.

3955885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908.

The product of its digits is 216000, while the sum is 43.

The square root of 3955885 is about 1988.9406728206. The cubic root of 3955885 is about 158.1543783000.

It can be divided in two parts, 395588 and 5, that added together give a palindrome (395593).

The spelling of 3955885 in words is "three million, nine hundred fifty-five thousand, eight hundred eighty-five".