2896221 has 4 divisors (see below), whose sum is σ = 3861632. Its totient is φ = 1930812.

The previous prime is 2896213. The next prime is 2896241. The reversal of 2896221 is 1226982.

2896221 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 2896221 - 2³ = 2896213 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2896241) 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, 482701 + ... + 482706.

It is an arithmetic number, because the mean of its divisors is an integer number (965408).

2^2896221 is an apocalyptic number.

It is an amenable number.

2896221 is a deficient number, since it is larger than the sum of its proper divisors (965411).

2896221 is an equidigital number, since it uses as much as digits as its factorization.

2896221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965410.

The product of its digits is 3456, while the sum is 30.

The square root of 2896221 is about 1701.8287222867. The cubic root of 2896221 is about 142.5423450641.

The spelling of 2896221 in words is "two million, eight hundred ninety-six thousand, two hundred twenty-one".