648211 has 2 divisors, whose sum is σ = 648212. Its totient is φ = 648210.

The previous prime is 648199. The next prime is 648217. The reversal of 648211 is 112846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 648211 - 2¹³ = 640019 is a prime.

It is a super-3 number, since 3×648211³ = 817091033370653793, which contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (648217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324105 + 324106.

It is an arithmetic number, because the mean of its divisors is an integer number (324106).

2⁶⁴⁸²¹¹ is an apocalyptic number.

648211 is a deficient number, since it is larger than the sum of its proper divisors (1).

648211 is an equidigital number, since it uses as much as digits as its factorization.

648211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 22.

The square root of 648211 is about 805.1155196616. The cubic root of 648211 is about 86.5443656269.

The spelling of 648211 in words is "six hundred forty-eight thousand, two hundred eleven".