3984289 has 4 divisors (see below), whose sum is σ = 4043824. Its totient is φ = 3924756.

The previous prime is 3984287. The next prime is 3984293. The reversal of 3984289 is 9824893.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 3984289 - 2¹ = 3984287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3984283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29667 + ... + 29800.

It is an arithmetic number, because the mean of its divisors is an integer number (1010956).

Almost surely, 2^3984289 is an apocalyptic number.

It is an amenable number.

3984289 is a deficient number, since it is larger than the sum of its proper divisors (59535).

3984289 is an equidigital number, since it uses as much as digits as its factorization.

3984289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59534.

The product of its digits is 124416, while the sum is 43.

The square root of 3984289 is about 1996.0683856021. The cubic root of 3984289 is about 158.5320020167.

The spelling of 3984289 in words is "three million, nine hundred eighty-four thousand, two hundred eighty-nine".