505394727 has 4 divisors (see below), whose sum is σ = 673859640. Its totient is φ = 336929816.

The previous prime is 505394707. The next prime is 505394749. The reversal of 505394727 is 727493505.

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 505394727 - 2¹⁶ = 505329191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505394707) 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, 84232452 + ... + 84232457.

It is an arithmetic number, because the mean of its divisors is an integer number (168464910).

Almost surely, 2^505394727 is an apocalyptic number.

505394727 is a deficient number, since it is larger than the sum of its proper divisors (168464913).

505394727 is a wasteful number, since it uses less digits than its factorization.

505394727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168464912.

The product of its (nonzero) digits is 264600, while the sum is 42.

The square root of 505394727 is about 22480.9858991993. The cubic root of 505394727 is about 796.5448525743.

The spelling of 505394727 in words is "five hundred five million, three hundred ninety-four thousand, seven hundred twenty-seven".