648208 has 40 divisors (see below), whose sum is σ = 1428480. Its totient is φ = 282240.

The previous prime is 648199. The next prime is 648211. The reversal of 648208 is 802846.

It is a super-2 number, since 2×648208² = 840347222528, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5041 + ... + 5167.

It is an arithmetic number, because the mean of its divisors is an integer number (35712).

2⁶⁴⁸²⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714240).

648208 is an abundant number, since it is smaller than the sum of its proper divisors (780272).

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

648208 is a wasteful number, since it uses less digits than its factorization.

648208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 648208 is about 805.1136565728. The cubic root of 648208 is about 86.5442321141.

The spelling of 648208 in words is "six hundred forty-eight thousand, two hundred eight".