648606 has 16 divisors (see below), whose sum is σ = 1482624. Its totient is φ = 185304.

The previous prime is 648563. The next prime is 648607. The reversal of 648606 is 606846.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648607) 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, 7680 + ... + 7763.

It is an arithmetic number, because the mean of its divisors is an integer number (92664).

2⁶⁴⁸⁶⁰⁶ is an apocalyptic number.

648606 is an abundant number, since it is smaller than the sum of its proper divisors (834018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648606 is a wasteful number, since it uses less digits than its factorization.

648606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15455.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 648606 is about 805.3607887152. The cubic root of 648606 is about 86.5619412224.

The spelling of 648606 in words is "six hundred forty-eight thousand, six hundred six".