648299 has 8 divisors (see below), whose sum is σ = 690000. Its totient is φ = 607392.

The previous prime is 648293. The next prime is 648317. The reversal of 648299 is 992846.

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

It is not a de Polignac number, because 648299 - 2⁴ = 648283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2717 + ... + 2945.

It is an arithmetic number, because the mean of its divisors is an integer number (86250).

2⁶⁴⁸²⁹⁹ is an apocalyptic number.

648299 is a deficient number, since it is larger than the sum of its proper divisors (41701).

648299 is a wasteful number, since it uses less digits than its factorization.

648299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397.

The product of its digits is 31104, while the sum is 38.

The square root of 648299 is about 805.1701683495. The cubic root of 648299 is about 86.5482818207.

The spelling of 648299 in words is "six hundred forty-eight thousand, two hundred ninety-nine".