8227649 has 2 divisors, whose sum is σ = 8227650. Its totient is φ = 8227648.

The previous prime is 8227633. The next prime is 8227651. The reversal of 8227649 is 9467228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5880625 + 2347024 = 2425^2 + 1532^2 .

It is a cyclic number.

It is not a de Polignac number, because 8227649 - 2⁴ = 8227633 is a prime.

Together with 8227651, 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 (8227669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4113824 + 4113825.

It is an arithmetic number, because the mean of its divisors is an integer number (4113825).

Almost surely, 2^8227649 is an apocalyptic number.

It is an amenable number.

8227649 is a deficient number, since it is larger than the sum of its proper divisors (1).

8227649 is an equidigital number, since it uses as much as digits as its factorization.

8227649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 8227649 is about 2868.3878747478. The cubic root of 8227649 is about 201.8793597195.

The spelling of 8227649 in words is "eight million, two hundred twenty-seven thousand, six hundred forty-nine".