203996 has 12 divisors (see below), whose sum is σ = 384552. Its totient is φ = 94128.

The previous prime is 203989. The next prime is 203999. The reversal of 203996 is 699302.

It is a super-2 number, since 2×203996² = 83228736032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203999) by changing a digit.

203996 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1910 + ... + 2013.

It is an arithmetic number, because the mean of its divisors is an integer number (32046).

2²⁰³⁹⁹⁶ is an apocalyptic number.

203996 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

203996 is a deficient number, since it is larger than the sum of its proper divisors (180556).

203996 is a wasteful number, since it uses less digits than its factorization.

203996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3940 (or 3938 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 203996 is about 451.6591635293. The cubic root of 203996 is about 58.8672684104.

The spelling of 203996 in words is "two hundred three thousand, nine hundred ninety-six".