505973 has 4 divisors (see below), whose sum is σ = 544908. Its totient is φ = 467040.

The previous prime is 505969. The next prime is 505979. The reversal of 505973 is 379505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20164 + 485809 = 142^2 + 697^2 .

It is a cyclic number.

It is not a de Polignac number, because 505973 - 2² = 505969 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505979) 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, 19448 + ... + 19473.

It is an arithmetic number, because the mean of its divisors is an integer number (136227).

2⁵⁰⁵⁹⁷³ is an apocalyptic number.

It is an amenable number.

505973 is a deficient number, since it is larger than the sum of its proper divisors (38935).

505973 is a wasteful number, since it uses less digits than its factorization.

505973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38934.

The product of its (nonzero) digits is 4725, while the sum is 29.

The square root of 505973 is about 711.3177911454. The cubic root of 505973 is about 79.6848539170.

The spelling of 505973 in words is "five hundred five thousand, nine hundred seventy-three".