505923 has 8 divisors (see below), whose sum is σ = 735936. Its totient is φ = 306600.

The previous prime is 505919. The next prime is 505927. The reversal of 505923 is 329505.

It is an interprime number because it is at equal distance from previous prime (505919) and next prime (505927).

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

It is not a de Polignac number, because 505923 - 2² = 505919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505893 and 505902.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 505923.

It is not an unprimeable number, because it can be changed into a prime (505927) 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, 7633 + ... + 7698.

It is an arithmetic number, because the mean of its divisors is an integer number (91992).

2⁵⁰⁵⁹²³ is an apocalyptic number.

505923 is a deficient number, since it is larger than the sum of its proper divisors (230013).

505923 is a wasteful number, since it uses less digits than its factorization.

505923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15345.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 505923 is about 711.2826442421. The cubic root of 505923 is about 79.6822290247.

The spelling of 505923 in words is "five hundred five thousand, nine hundred twenty-three".