1006648321 has 8 divisors (see below), whose sum is σ = 1158177600. Its totient is φ = 857049648.

The previous prime is 1006648289. The next prime is 1006648339. The reversal of 1006648321 is 1238466001.

It is a happy number.

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

It is not a de Polignac number, because 1006648321 - 2⁵ = 1006648289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1006648351) 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, 481531 + ... + 483616.

It is an arithmetic number, because the mean of its divisors is an integer number (144772200).

Almost surely, 2^1006648321 is an apocalyptic number.

It is an amenable number.

1006648321 is a deficient number, since it is larger than the sum of its proper divisors (151529279).

1006648321 is an equidigital number, since it uses as much as digits as its factorization.

1006648321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965303.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1006648321 is about 31727.7216484260. The cubic root of 1006648321 is about 1002.2112139291.

The spelling of 1006648321 in words is "one billion, six million, six hundred forty-eight thousand, three hundred twenty-one".