2889421 has 4 divisors (see below), whose sum is σ = 3015072. Its totient is φ = 2763772.

The previous prime is 2889389. The next prime is 2889427. The reversal of 2889421 is 1249882.

2889421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2889421 - 2⁵ = 2889389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2889427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62791 + ... + 62836.

It is an arithmetic number, because the mean of its divisors is an integer number (753768).

2^2889421 is an apocalyptic number.

It is an amenable number.

2889421 is a deficient number, since it is larger than the sum of its proper divisors (125651).

2889421 is a wasteful number, since it uses less digits than its factorization.

2889421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125650.

The product of its digits is 9216, while the sum is 34.

The square root of 2889421 is about 1699.8296973521. The cubic root of 2889421 is about 142.4306998627.

The spelling of 2889421 in words is "two million, eight hundred eighty-nine thousand, four hundred twenty-one".