505484769 has 4 divisors (see below), whose sum is σ = 673979696. Its totient is φ = 336989844.

The previous prime is 505484767. The next prime is 505484773. The reversal of 505484769 is 967484505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 505484769 - 2¹ = 505484767 is a prime.

It is a super-2 number, since 2×505484769² = 511029703381966722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505484767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84247459 + ... + 84247464.

It is an arithmetic number, because the mean of its divisors is an integer number (168494924).

Almost surely, 2^505484769 is an apocalyptic number.

It is an amenable number.

505484769 is a deficient number, since it is larger than the sum of its proper divisors (168494927).

505484769 is a wasteful number, since it uses less digits than its factorization.

505484769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168494926.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The square root of 505484769 is about 22482.9884357040. The cubic root of 505484769 is about 796.5921543689.

The spelling of 505484769 in words is "five hundred five million, four hundred eighty-four thousand, seven hundred sixty-nine".