2889521 has 4 divisors (see below), whose sum is σ = 2893044. Its totient is φ = 2886000.

The previous prime is 2889511. The next prime is 2889529. The reversal of 2889521 is 1259882.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 672400 + 2217121 = 820^2 + 1489^2 .

It is a cyclic number.

It is not a de Polignac number, because 2889521 - 2⁶ = 2889457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2889529) 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, 191 + ... + 2411.

It is an arithmetic number, because the mean of its divisors is an integer number (723261).

2^2889521 is an apocalyptic number.

It is an amenable number.

2889521 is a deficient number, since it is larger than the sum of its proper divisors (3523).

2889521 is a wasteful number, since it uses less digits than its factorization.

2889521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522.

The product of its digits is 11520, while the sum is 35.

The square root of 2889521 is about 1699.8591118090. The cubic root of 2889521 is about 142.4323429722.

The spelling of 2889521 in words is "two million, eight hundred eighty-nine thousand, five hundred twenty-one".