203396 has 6 divisors (see below), whose sum is σ = 355950. Its totient is φ = 101696.

The previous prime is 203393. The next prime is 203417. The reversal of 203396 is 693302.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 184900 + 18496 = 430^2 + 136^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 203396.

It is not an unprimeable number, because it can be changed into a prime (203393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25421 + ... + 25428.

It is an arithmetic number, because the mean of its divisors is an integer number (59325).

2²⁰³³⁹⁶ is an apocalyptic number.

It is an amenable number.

203396 is a deficient number, since it is larger than the sum of its proper divisors (152554).

203396 is a wasteful number, since it uses less digits than its factorization.

203396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50853 (or 50851 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 203396 is about 450.9944567287. The cubic root of 203396 is about 58.8094975943.

Adding to 203396 its reverse (693302), we get a palindrome (896698).

The spelling of 203396 in words is "two hundred three thousand, three hundred ninety-six".