506766823 has 2 divisors, whose sum is σ = 506766824. Its totient is φ = 506766822.

The previous prime is 506766809. The next prime is 506766857. The reversal of 506766823 is 328667605.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506766823 is a prime.

It is a super-2 number, since 2×506766823² = 513625225787026658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 506766823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506766863) 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, 253383411 + 253383412.

It is an arithmetic number, because the mean of its divisors is an integer number (253383412).

Almost surely, 2^506766823 is an apocalyptic number.

506766823 is a deficient number, since it is larger than the sum of its proper divisors (1).

506766823 is an equidigital number, since it uses as much as digits as its factorization.

506766823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 506766823 is about 22511.4820258463. The cubic root of 506766823 is about 797.2650476788.

The spelling of 506766823 in words is "five hundred six million, seven hundred sixty-six thousand, eight hundred twenty-three".