2953221 has 4 divisors (see below), whose sum is σ = 3937632. Its totient is φ = 1968812.

The previous prime is 2953219. The next prime is 2953231. The reversal of 2953221 is 1223592.

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 2953221 - 2¹ = 2953219 is a prime.

It is a D-number.

2953221 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2953191 and 2953200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2953201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492201 + ... + 492206.

It is an arithmetic number, because the mean of its divisors is an integer number (984408).

2^2953221 is an apocalyptic number.

It is an amenable number.

2953221 is a deficient number, since it is larger than the sum of its proper divisors (984411).

2953221 is an equidigital number, since it uses as much as digits as its factorization.

2953221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984410.

The product of its digits is 1080, while the sum is 24.

The square root of 2953221 is about 1718.4938172714. The cubic root of 2953221 is about 143.4713933272.

The spelling of 2953221 in words is "two million, nine hundred fifty-three thousand, two hundred twenty-one".