650623 has 2 divisors, whose sum is σ = 650624. Its totient is φ = 650622.

The previous prime is 650609. The next prime is 650627. The reversal of 650623 is 326056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 650623 - 2⁵ = 650591 is a prime.

It is equal to p₅₂₈₇₀ and since 650623 and 52870 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 650594 and 650603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325311 + 325312.

It is an arithmetic number, because the mean of its divisors is an integer number (325312).

2⁶⁵⁰⁶²³ is an apocalyptic number.

650623 is a deficient number, since it is larger than the sum of its proper divisors (1).

650623 is an equidigital number, since it uses as much as digits as its factorization.

650623 is an odious number, because the sum of its binary digits is odd.

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

The square root of 650623 is about 806.6120504927. The cubic root of 650623 is about 86.6515769258.

Adding to 650623 its reverse (326056), we get a palindrome (976679).

The spelling of 650623 in words is "six hundred fifty thousand, six hundred twenty-three".