647326 has 16 divisors (see below), whose sum is σ = 1045440. Its totient is φ = 299520.

The previous prime is 647321. The next prime is 647327. The reversal of 647326 is 623746.

647326 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 647294 and 647303.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2566 + ... + 2806.

It is an arithmetic number, because the mean of its divisors is an integer number (65340).

2⁶⁴⁷³²⁶ is an apocalyptic number.

647326 is a deficient number, since it is larger than the sum of its proper divisors (398114).

647326 is a wasteful number, since it uses less digits than its factorization.

647326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339.

The product of its digits is 6048, while the sum is 28.

The square root of 647326 is about 804.5657213677. The cubic root of 647326 is about 86.5049614582.

Subtracting from 647326 its product of digits (6048), we obtain a triangular number (641278 = T₁₁₃₂).

It can be divided in two parts, 64 and 7326, that multiplied together give a palindrome (468864).

The spelling of 647326 in words is "six hundred forty-seven thousand, three hundred twenty-six".