501973 has 4 divisors (see below), whose sum is σ = 504448. Its totient is φ = 499500.

The previous prime is 501971. The next prime is 501997. The reversal of 501973 is 379105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 379105 = 5 ⋅75821.

It is a cyclic number.

It is not a de Polignac number, because 501973 - 2¹ = 501971 is a prime.

It is the 709-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501971) by changing a digit.

It is a nontrivial repunit in base 708.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903 + ... + 1348.

It is an arithmetic number, because the mean of its divisors is an integer number (126112).

2⁵⁰¹⁹⁷³ is an apocalyptic number.

It is an amenable number.

501973 is a deficient number, since it is larger than the sum of its proper divisors (2475).

501973 is a wasteful number, since it uses less digits than its factorization.

501973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 501973 is about 708.5005292870. The cubic root of 501973 is about 79.4743136562.

The spelling of 501973 in words is "five hundred one thousand, nine hundred seventy-three".