648683 has 4 divisors (see below), whose sum is σ = 741360. Its totient is φ = 556008.

The previous prime is 648677. The next prime is 648689. The reversal of 648683 is 386846.

648683 = T₄₆₂ + T₄₆₃ + ... + T₄₆₇.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 386846 = 2 ⋅193423.

It is an interprime number because it is at equal distance from previous prime (648677) and next prime (648689).

It is a cyclic number.

It is not a de Polignac number, because 648683 - 2⁶ = 648619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46328 + ... + 46341.

It is an arithmetic number, because the mean of its divisors is an integer number (185340).

2⁶⁴⁸⁶⁸³ is an apocalyptic number.

648683 is a deficient number, since it is larger than the sum of its proper divisors (92677).

648683 is an equidigital number, since it uses as much as digits as its factorization.

648683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92676.

The product of its digits is 27648, while the sum is 35.

The square root of 648683 is about 805.4085919581. The cubic root of 648683 is about 86.5653665200.

It can be divided in two parts, 648 and 683, that added together give a palindrome (1331).

The spelling of 648683 in words is "six hundred forty-eight thousand, six hundred eighty-three".