648329 has 8 divisors (see below), whose sum is σ = 749088. Its totient is φ = 554560.

The previous prime is 648317. The next prime is 648331. The reversal of 648329 is 923846.

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

It is a cyclic number.

It is not a de Polignac number, because 648329 - 2⁸ = 648073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 648295 and 648304.

It is not an unprimeable number, because it can be changed into a prime (648379) 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, 1547 + ... + 1920.

It is an arithmetic number, because the mean of its divisors is an integer number (93636).

2⁶⁴⁸³²⁹ is an apocalyptic number.

It is an amenable number.

648329 is a deficient number, since it is larger than the sum of its proper divisors (100759).

648329 is a wasteful number, since it uses less digits than its factorization.

648329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3495.

The product of its digits is 10368, while the sum is 32.

The square root of 648329 is about 805.1887977363. The cubic root of 648329 is about 86.5496168057.

The spelling of 648329 in words is "six hundred forty-eight thousand, three hundred twenty-nine".