648324 has 72 divisors (see below), whose sum is σ = 1834560. Its totient is φ = 199584.

The previous prime is 648317. The next prime is 648331. The reversal of 648324 is 423846.

It is an interprime number because it is at equal distance from previous prime (648317) and next prime (648331).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22342 + ... + 22370.

It is an arithmetic number, because the mean of its divisors is an integer number (25480).

2⁶⁴⁸³²⁴ 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 648324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (917280).

648324 is an abundant number, since it is smaller than the sum of its proper divisors (1186236).

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

648324 is a wasteful number, since it uses less digits than its factorization.

648324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 57 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 648324 is about 805.1856928684. The cubic root of 648324 is about 86.5493943111.

The spelling of 648324 in words is "six hundred forty-eight thousand, three hundred twenty-four".