648453 has 12 divisors (see below), whose sum is σ = 936960. Its totient is φ = 398736.

The previous prime is 648449. The next prime is 648481. The reversal of 648453 is 354846.

It is not a de Polignac number, because 648453 - 2² = 648449 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 648453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133 + ... + 1146.

It is an arithmetic number, because the mean of its divisors is an integer number (78080).

2⁶⁴⁸⁴⁵³ is an apocalyptic number.

It is an amenable number.

648453 is a deficient number, since it is larger than the sum of its proper divisors (288507).

648453 is a wasteful number, since it uses less digits than its factorization.

648453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308 (or 1295 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 648453 is about 805.2657946293. The cubic root of 648453 is about 86.5551343070. Note that the first 3 decimals are identical.

The spelling of 648453 in words is "six hundred forty-eight thousand, four hundred fifty-three".