505347 has 4 divisors (see below), whose sum is σ = 673800. Its totient is φ = 336896.

The previous prime is 505339. The next prime is 505357. The reversal of 505347 is 743505.

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 505347 - 2³ = 505339 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (505327) 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, 84222 + ... + 84227.

It is an arithmetic number, because the mean of its divisors is an integer number (168450).

2⁵⁰⁵³⁴⁷ is an apocalyptic number.

505347 is a deficient number, since it is larger than the sum of its proper divisors (168453).

505347 is a wasteful number, since it uses less digits than its factorization.

505347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168452.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 505347 is about 710.8776265997. The cubic root of 505347 is about 79.6519777855.

The spelling of 505347 in words is "five hundred five thousand, three hundred forty-seven".