648897 has 8 divisors (see below), whose sum is σ = 877344. Its totient is φ = 426528.

The previous prime is 648889. The next prime is 648911. The reversal of 648897 is 798846.

It is a happy number.

648897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 648897 - 2³ = 648889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (648887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1263 + ... + 1700.

It is an arithmetic number, because the mean of its divisors is an integer number (109668).

2⁶⁴⁸⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

648897 is a deficient number, since it is larger than the sum of its proper divisors (228447).

648897 is a wasteful number, since it uses less digits than its factorization.

648897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039.

The product of its digits is 96768, while the sum is 42.

The square root of 648897 is about 805.5414328264. The cubic root of 648897 is about 86.5748847550.

The spelling of 648897 in words is "six hundred forty-eight thousand, eight hundred ninety-seven".