505947 has 8 divisors (see below), whose sum is σ = 726544. Its totient is φ = 311328.

The previous prime is 505927. The next prime is 505949. The reversal of 505947 is 749505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505947 - 2⁷ = 505819 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 505947.

It is not an unprimeable number, because it can be changed into a prime (505949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6448 + ... + 6525.

It is an arithmetic number, because the mean of its divisors is an integer number (90818).

2⁵⁰⁵⁹⁴⁷ is an apocalyptic number.

505947 is a deficient number, since it is larger than the sum of its proper divisors (220597).

505947 is a wasteful number, since it uses less digits than its factorization.

505947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12989.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 505947 is about 711.2995149724. The cubic root of 505947 is about 79.6834889946.

The spelling of 505947 in words is "five hundred five thousand, nine hundred forty-seven".