2227649 has 2 divisors, whose sum is σ = 2227650. Its totient is φ = 2227648.

The previous prime is 2227639. The next prime is 2227651. The reversal of 2227649 is 9467222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2190400 + 37249 = 1480^2 + 193^2 .

It is a cyclic number.

It is not a de Polignac number, because 2227649 - 2¹⁶ = 2162113 is a prime.

Together with 2227651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2227609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1113824 + 1113825.

It is an arithmetic number, because the mean of its divisors is an integer number (1113825).

2^2227649 is an apocalyptic number.

It is an amenable number.

2227649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2227649 is an equidigital number, since it uses as much as digits as its factorization.

2227649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 2227649 is about 1492.5310717034. The cubic root of 2227649 is about 130.6017272703.

The spelling of 2227649 in words is "two million, two hundred twenty-seven thousand, six hundred forty-nine".