6417321 has 4 divisors (see below), whose sum is σ = 8556432. Its totient is φ = 4278212.

The previous prime is 6417319. The next prime is 6417343. The reversal of 6417321 is 1237146.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6417321 - 2¹ = 6417319 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 6417291 and 6417300.

It is not an unprimeable number, because it can be changed into a prime (6417121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1069551 + ... + 1069556.

It is an arithmetic number, because the mean of its divisors is an integer number (2139108).

Almost surely, 2^6417321 is an apocalyptic number.

It is an amenable number.

6417321 is a deficient number, since it is larger than the sum of its proper divisors (2139111).

6417321 is a wasteful number, since it uses less digits than its factorization.

6417321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139110.

The product of its digits is 1008, while the sum is 24.

The square root of 6417321 is about 2533.2431782204. The cubic root of 6417321 is about 185.8308961364.

The spelling of 6417321 in words is "six million, four hundred seventeen thousand, three hundred twenty-one".