3821289 has 8 divisors (see below), whose sum is σ = 5316672. Its totient is φ = 2436720.

The previous prime is 3821273. The next prime is 3821317. The reversal of 3821289 is 9821283.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3821289 - 2⁴ = 3821273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3821219) 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 7 ways as a sum of consecutive naturals, for example, 27622 + ... + 27759.

It is an arithmetic number, because the mean of its divisors is an integer number (664584).

Almost surely, 2^3821289 is an apocalyptic number.

It is an amenable number.

3821289 is a deficient number, since it is larger than the sum of its proper divisors (1495383).

3821289 is a wasteful number, since it uses less digits than its factorization.

3821289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55407.

The product of its digits is 6912, while the sum is 33.

The square root of 3821289 is about 1954.8117556430. The cubic root of 3821289 is about 156.3399473574.

The spelling of 3821289 in words is "three million, eight hundred twenty-one thousand, two hundred eighty-nine".