648653 has 2 divisors, whose sum is σ = 648654. Its totient is φ = 648652.

The previous prime is 648649. The next prime is 648671. The reversal of 648653 is 356846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 644809 + 3844 = 803^2 + 62^2 .

It is a cyclic number.

It is not a de Polignac number, because 648653 - 2² = 648649 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324326 + 324327.

It is an arithmetic number, because the mean of its divisors is an integer number (324327).

2⁶⁴⁸⁶⁵³ is an apocalyptic number.

It is an amenable number.

648653 is a deficient number, since it is larger than the sum of its proper divisors (1).

648653 is an equidigital number, since it uses as much as digits as its factorization.

648653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 648653 is about 805.3899676554. The cubic root of 648653 is about 86.5640320207.

The spelling of 648653 in words is "six hundred forty-eight thousand, six hundred fifty-three".