3821955 has 16 divisors (see below), whose sum is σ = 6216864. Its totient is φ = 2004480.

The previous prime is 3821953. The next prime is 3821963. The reversal of 3821955 is 5591283.

It is not a de Polignac number, because 3821955 - 2¹ = 3821953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3821953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1174 + ... + 3003.

It is an arithmetic number, because the mean of its divisors is an integer number (388554).

Almost surely, 2^3821955 is an apocalyptic number.

3821955 is a deficient number, since it is larger than the sum of its proper divisors (2394909).

3821955 is a wasteful number, since it uses less digits than its factorization.

3821955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4246.

The product of its digits is 10800, while the sum is 33.

The square root of 3821955 is about 1954.9820971047. The cubic root of 3821955 is about 156.3490294896.

The spelling of 3821955 in words is "three million, eight hundred twenty-one thousand, nine hundred fifty-five".