2727221 has 8 divisors (see below), whose sum is σ = 3176064. Its totient is φ = 2293200.

The previous prime is 2727209. The next prime is 2727223. The reversal of 2727221 is 1227272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2727221 is a prime.

It is an Ulam 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 (2727223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3305 + ... + 4046.

It is an arithmetic number, because the mean of its divisors is an integer number (397008).

2^2727221 is an apocalyptic number.

It is an amenable number.

2727221 is a deficient number, since it is larger than the sum of its proper divisors (448843).

2727221 is an equidigital number, since it uses as much as digits as its factorization.

2727221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7411.

The product of its digits is 784, while the sum is 23.

The square root of 2727221 is about 1651.4299864057. The cubic root of 2727221 is about 139.7140592396.

The spelling of 2727221 in words is "two million, seven hundred twenty-seven thousand, two hundred twenty-one".