2221627 has 4 divisors (see below), whose sum is σ = 2224936. Its totient is φ = 2218320.

The previous prime is 2221589. The next prime is 2221631. The reversal of 2221627 is 7261222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7261222 = 2 ⋅3630611.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221598 and 2221607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221657) 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, 249 + ... + 2122.

It is an arithmetic number, because the mean of its divisors is an integer number (556234).

2^2221627 is an apocalyptic number.

2221627 is a deficient number, since it is larger than the sum of its proper divisors (3309).

2221627 is an equidigital number, since it uses as much as digits as its factorization.

2221627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308.

The product of its digits is 672, while the sum is 22.

The square root of 2221627 is about 1490.5123280268. The cubic root of 2221627 is about 130.4839359175.

Adding to 2221627 its reverse (7261222), we get a palindrome (9482849).

It can be divided in two parts, 222 and 1627, that added together give a square (1849 = 43²).

The spelling of 2221627 in words is "two million, two hundred twenty-one thousand, six hundred twenty-seven".