2996221 has 4 divisors (see below), whose sum is σ = 3000672. Its totient is φ = 2991772.

The previous prime is 2996219. The next prime is 2996237. The reversal of 2996221 is 1226992.

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 a cyclic number.

It is not a de Polignac number, because 2996221 - 2¹ = 2996219 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2996291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 985 + ... + 2638.

It is an arithmetic number, because the mean of its divisors is an integer number (750168).

2^2996221 is an apocalyptic number.

It is an amenable number.

2996221 is a deficient number, since it is larger than the sum of its proper divisors (4451).

2996221 is an equidigital number, since it uses as much as digits as its factorization.

2996221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4450.

The product of its digits is 3888, while the sum is 31.

The square root of 2996221 is about 1730.9595604751. The cubic root of 2996221 is about 144.1643731282.

The spelling of 2996221 in words is "two million, nine hundred ninety-six thousand, two hundred twenty-one".