656323 has 2 divisors, whose sum is σ = 656324. Its totient is φ = 656322.

The previous prime is 656321. The next prime is 656329. The reversal of 656323 is 323656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 656323 - 2¹ = 656321 is a prime.

Together with 656321, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

656323 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (656321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328161 + 328162.

It is an arithmetic number, because the mean of its divisors is an integer number (328162).

2⁶⁵⁶³²³ is an apocalyptic number.

656323 is a deficient number, since it is larger than the sum of its proper divisors (1).

656323 is an equidigital number, since it uses as much as digits as its factorization.

656323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 25.

The square root of 656323 is about 810.1376426262. The cubic root of 656323 is about 86.9038882242.

Adding to 656323 its reverse (323656), we get a palindrome (979979).

It can be divided in two parts, 656 and 323, that added together give a palindrome (979).

The spelling of 656323 in words is "six hundred fifty-six thousand, three hundred twenty-three".