623017 has 2 divisors, whose sum is σ = 623018. Its totient is φ = 623016.

The previous prime is 623009. The next prime is 623023. The reversal of 623017 is 710326.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 341056 + 281961 = 584^2 + 531^2 .

It is a cyclic number.

It is not a de Polignac number, because 623017 - 2³ = 623009 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 622985 and 623003.

It is not a weakly prime, because it can be changed into another prime (623057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311508 + 311509.

It is an arithmetic number, because the mean of its divisors is an integer number (311509).

2⁶²³⁰¹⁷ is an apocalyptic number.

It is an amenable number.

623017 is a deficient number, since it is larger than the sum of its proper divisors (1).

623017 is an equidigital number, since it uses as much as digits as its factorization.

623017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 623017 is about 789.3142593416. The cubic root of 623017 is about 85.4082780049.

The spelling of 623017 in words is "six hundred twenty-three thousand, seventeen".