2899221 has 16 divisors (see below), whose sum is σ = 4220160. Its totient is φ = 1759680.

The previous prime is 2899199. The next prime is 2899261. The reversal of 2899221 is 1229982.

It is a happy number.

2899221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2899221 - 2¹⁰ = 2898197 is a prime.

2899221 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2899261) 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 15 ways as a sum of consecutive naturals, for example, 2611 + ... + 3551.

It is an arithmetic number, because the mean of its divisors is an integer number (263760).

2^2899221 is an apocalyptic number.

It is an amenable number.

2899221 is a deficient number, since it is larger than the sum of its proper divisors (1320939).

2899221 is a wasteful number, since it uses less digits than its factorization.

2899221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036.

The product of its digits is 5184, while the sum is 33.

The square root of 2899221 is about 1702.7098989552. The cubic root of 2899221 is about 142.5915447476.

The spelling of 2899221 in words is "two million, eight hundred ninety-nine thousand, two hundred twenty-one".