3984291 has 6 divisors (see below), whose sum is σ = 5755100. Its totient is φ = 2656188.

The previous prime is 3984287. The next prime is 3984293. The reversal of 3984291 is 1924893.

It is not a de Polignac number, because 3984291 - 2² = 3984287 is a prime.

It is a Duffinian number.

3984291 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3984293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221341 + ... + 221358.

Almost surely, 2^3984291 is an apocalyptic number.

3984291 is a deficient number, since it is larger than the sum of its proper divisors (1770809).

3984291 is a wasteful number, since it uses less digits than its factorization.

3984291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442705 (or 442702 counting only the distinct ones).

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

The square root of 3984291 is about 1996.0688865868. The cubic root of 3984291 is about 158.5320285429.

The spelling of 3984291 in words is "three million, nine hundred eighty-four thousand, two hundred ninety-one".