3989241 has 6 divisors (see below), whose sum is σ = 5762250. Its totient is φ = 2659488.

The previous prime is 3989233. The next prime is 3989243. The reversal of 3989241 is 1429893.

It can be written as a sum of positive squares in only one way, i.e., 3980025 + 9216 = 1995^2 + 96^2 .

It is not a de Polignac number, because 3989241 - 2³ = 3989233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3989196 and 3989205.

It is not an unprimeable number, because it can be changed into a prime (3989243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221616 + ... + 221633.

It is an arithmetic number, because the mean of its divisors is an integer number (960375).

Almost surely, 2^3989241 is an apocalyptic number.

It is an amenable number.

3989241 is a deficient number, since it is larger than the sum of its proper divisors (1773009).

3989241 is a wasteful number, since it uses less digits than its factorization.

3989241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443255 (or 443252 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 3989241 is about 1997.3084388747. The cubic root of 3989241 is about 158.5976536681.

The spelling of 3989241 in words is "three million, nine hundred eighty-nine thousand, two hundred forty-one".