506857423 has 2 divisors, whose sum is σ = 506857424. Its totient is φ = 506857422.

The previous prime is 506857411. The next prime is 506857441. The reversal of 506857423 is 324758605.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 506857423 - 2²¹ = 504760271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506857493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253428711 + 253428712.

It is an arithmetic number, because the mean of its divisors is an integer number (253428712).

Almost surely, 2^506857423 is an apocalyptic number.

506857423 is a deficient number, since it is larger than the sum of its proper divisors (1).

506857423 is an equidigital number, since it uses as much as digits as its factorization.

506857423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 506857423 is about 22513.4942423427. The cubic root of 506857423 is about 797.3125566487.

The spelling of 506857423 in words is "five hundred six million, eight hundred fifty-seven thousand, four hundred twenty-three".