647322 has 32 divisors (see below), whose sum is σ = 1434048. Its totient is φ = 193536.

The previous prime is 647321. The next prime is 647327. The reversal of 647322 is 223746.

It is a junction number, because it is equal to n+sod(n) for n = 647292 and 647301.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 647322.

It is not an unprimeable number, because it can be changed into a prime (647321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3258 + ... + 3450.

It is an arithmetic number, because the mean of its divisors is an integer number (44814).

2⁶⁴⁷³²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 647322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (717024).

647322 is an abundant number, since it is smaller than the sum of its proper divisors (786726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

647322 is a wasteful number, since it uses less digits than its factorization.

647322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254.

The product of its digits is 2016, while the sum is 24.

The square root of 647322 is about 804.5632355508. The cubic root of 647322 is about 86.5047832788.

It can be divided in two parts, 647 and 322, that added together give a palindrome (969).

The spelling of 647322 in words is "six hundred forty-seven thousand, three hundred twenty-two".