2079221 has 4 divisors (see below), whose sum is σ = 2083200. Its totient is φ = 2075244.

The previous prime is 2079199. The next prime is 2079229. The reversal of 2079221 is 1229702.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1229702 = 2 ⋅614851.

It is a cyclic number.

It is not a de Polignac number, because 2079221 - 2¹⁸ = 1817077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2079229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061 + ... + 2298.

It is an arithmetic number, because the mean of its divisors is an integer number (520800).

2^2079221 is an apocalyptic number.

It is an amenable number.

2079221 is a deficient number, since it is larger than the sum of its proper divisors (3979).

2079221 is an equidigital number, since it uses as much as digits as its factorization.

2079221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3978.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2079221 is about 1441.9504152363. The cubic root of 2079221 is about 127.6341481834.

The spelling of 2079221 in words is "two million, seventy-nine thousand, two hundred twenty-one".