656023 has 2 divisors, whose sum is σ = 656024. Its totient is φ = 656022.

The previous prime is 655987. The next prime is 656039. The reversal of 656023 is 320656.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 656023 - 2⁹ = 655511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 655985 and 656003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (656063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328011 + 328012.

It is an arithmetic number, because the mean of its divisors is an integer number (328012).

2⁶⁵⁶⁰²³ is an apocalyptic number.

656023 is a deficient number, since it is larger than the sum of its proper divisors (1).

656023 is an equidigital number, since it uses as much as digits as its factorization.

656023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 656023 is about 809.9524677412. The cubic root of 656023 is about 86.8906451819.

Adding to 656023 its reverse (320656), we get a palindrome (976679).

The spelling of 656023 in words is "six hundred fifty-six thousand, twenty-three".