2648321 has 8 divisors (see below), whose sum is σ = 2881704. Its totient is φ = 2419200.

The previous prime is 2648291. The next prime is 2648323. The reversal of 2648321 is 1238462.

It can be written as a sum of positive squares in 4 ways, for example, as 1050625 + 1597696 = 1025^2 + 1264^2 .

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 2648321 - 2⁶ = 2648257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2648323) by changing a digit.

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, 305 + ... + 2321.

It is an arithmetic number, because the mean of its divisors is an integer number (360213).

2^2648321 is an apocalyptic number.

It is an amenable number.

2648321 is a deficient number, since it is larger than the sum of its proper divisors (233383).

2648321 is a wasteful number, since it uses less digits than its factorization.

2648321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131.

The product of its digits is 2304, while the sum is 26.

The square root of 2648321 is about 1627.3662771484. The cubic root of 2648321 is about 138.3535184493.

The spelling of 2648321 in words is "two million, six hundred forty-eight thousand, three hundred twenty-one".