3815955 has 48 divisors (see below), whose sum is σ = 7783776. Its totient is φ = 1704960.

The previous prime is 3815927. The next prime is 3815957. The reversal of 3815955 is 5595183.

It is a happy number.

3815955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3815955 - 2⁵ = 3815923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3815957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6139 + ... + 6731.

It is an arithmetic number, because the mean of its divisors is an integer number (162162).

Almost surely, 2^3815955 is an apocalyptic number.

3815955 is an abundant number, since it is smaller than the sum of its proper divisors (3967821).

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

3815955 is a wasteful number, since it uses less digits than its factorization.

3815955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 625 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The square root of 3815955 is about 1953.4469534646. The cubic root of 3815955 is about 156.2671703797.

It can be divided in two parts, 381 and 5955, that added together give a palindrome (6336).

The spelling of 3815955 in words is "three million, eight hundred fifteen thousand, nine hundred fifty-five".