203973 has 16 divisors (see below), whose sum is σ = 339456. Its totient is φ = 105840.

The previous prime is 203971. The next prime is 203977. The reversal of 203973 is 379302.

203973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203973 - 2¹ = 203971 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 (203971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211 + ... + 672.

It is an arithmetic number, because the mean of its divisors is an integer number (21216).

2²⁰³⁹⁷³ is an apocalyptic number.

It is an amenable number.

203973 is a deficient number, since it is larger than the sum of its proper divisors (135483).

203973 is a wasteful number, since it uses less digits than its factorization.

203973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904.

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 203973 is about 451.6337011340. The cubic root of 203973 is about 58.8650559519.

It can be divided in two parts, 2039 and 73, that added together give a palindrome (2112).

The spelling of 203973 in words is "two hundred three thousand, nine hundred seventy-three".