654023 has 2 divisors, whose sum is σ = 654024. Its totient is φ = 654022.

The previous prime is 654019. The next prime is 654029. The reversal of 654023 is 320456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654023 - 2² = 654019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 653986 and 654004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654029) 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 as a sum of consecutive naturals, namely, 327011 + 327012.

It is an arithmetic number, because the mean of its divisors is an integer number (327012).

2⁶⁵⁴⁰²³ is an apocalyptic number.

654023 is a deficient number, since it is larger than the sum of its proper divisors (1).

654023 is an equidigital number, since it uses as much as digits as its factorization.

654023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 654023 is about 808.7168849480. The cubic root of 654023 is about 86.8022548913.

Adding to 654023 its reverse (320456), we get a palindrome (974479).

The spelling of 654023 in words is "six hundred fifty-four thousand, twenty-three".