506923 has 4 divisors (see below), whose sum is σ = 536760. Its totient is φ = 477088.

The previous prime is 506911. The next prime is 506929. The reversal of 506923 is 329605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329605 = 5 ⋅65921.

It is a de Polignac number, because none of the positive numbers 2^k-506923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506929) 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, 14893 + ... + 14926.

It is an arithmetic number, because the mean of its divisors is an integer number (134190).

2⁵⁰⁶⁹²³ is an apocalyptic number.

506923 is a deficient number, since it is larger than the sum of its proper divisors (29837).

506923 is a wasteful number, since it uses less digits than its factorization.

506923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29836.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 506923 is about 711.9852526563. The cubic root of 506923 is about 79.7346940487.

It can be divided in two parts, 50692 and 3, that multiplied together give a triangular number (152076 = T₅₅₁).

The spelling of 506923 in words is "five hundred six thousand, nine hundred twenty-three".