506785867 has 4 divisors (see below), whose sum is σ = 579183856. Its totient is φ = 434387880.

The previous prime is 506785837. The next prime is 506785883. The reversal of 506785867 is 768587605.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 506785867 - 2⁷ = 506785739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506785837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36198984 + ... + 36198997.

It is an arithmetic number, because the mean of its divisors is an integer number (144795964).

Almost surely, 2^506785867 is an apocalyptic number.

506785867 is a deficient number, since it is larger than the sum of its proper divisors (72397989).

506785867 is an equidigital number, since it uses as much as digits as its factorization.

506785867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72397988.

The product of its (nonzero) digits is 2822400, while the sum is 52.

The square root of 506785867 is about 22511.9050060185. The cubic root of 506785867 is about 797.2750344713.

The spelling of 506785867 in words is "five hundred six million, seven hundred eighty-five thousand, eight hundred sixty-seven".