3889521 has 12 divisors (see below), whose sum is σ = 5662800. Its totient is φ = 2572440.

The previous prime is 3889519. The next prime is 3889537. The reversal of 3889521 is 1259883.

It is not a de Polignac number, because 3889521 - 2¹ = 3889519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3889591) 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 11 ways as a sum of consecutive naturals, for example, 471 + ... + 2828.

It is an arithmetic number, because the mean of its divisors is an integer number (471900).

Almost surely, 2^3889521 is an apocalyptic number.

It is an amenable number.

3889521 is a deficient number, since it is larger than the sum of its proper divisors (1773279).

3889521 is a wasteful number, since it uses less digits than its factorization.

3889521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436 (or 3433 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 3889521 is about 1972.1868572729. The cubic root of 3889521 is about 157.2649858541.

The spelling of 3889521 in words is "three million, eight hundred eighty-nine thousand, five hundred twenty-one".