3955489 has 4 divisors (see below), whose sum is σ = 3959856. Its totient is φ = 3951124.

The previous prime is 3955459. The next prime is 3955493. The reversal of 3955489 is 9845593.

It is a happy number.

3955489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3955489 - 2¹³ = 3947297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3955429) 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 3 ways as a sum of consecutive naturals, for example, 259 + ... + 2824.

It is an arithmetic number, because the mean of its divisors is an integer number (989964).

Almost surely, 2^3955489 is an apocalyptic number.

It is an amenable number.

3955489 is a deficient number, since it is larger than the sum of its proper divisors (4367).

3955489 is a wasteful number, since it uses less digits than its factorization.

3955489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4366.

The product of its digits is 194400, while the sum is 43.

The square root of 3955489 is about 1988.8411198484. The cubic root of 3955489 is about 158.1491008274.

It can be divided in two parts, 3955 and 489, that added together give a palindrome (4444).

The spelling of 3955489 in words is "three million, nine hundred fifty-five thousand, four hundred eighty-nine".