72203 has 4 divisors (see below), whose sum is σ = 73008. Its totient is φ = 71400.

The previous prime is 72173. The next prime is 72211. The reversal of 72203 is 30227.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 30227 = 167 ⋅181.

It is a cyclic number.

It is not a de Polignac number, because 72203 - 2⁶ = 72139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72223) 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 in 3 ways as a sum of consecutive naturals, for example, 248 + ... + 453.

It is an arithmetic number, because the mean of its divisors is an integer number (18252).

2⁷²²⁰³ is an apocalyptic number.

72203 is a deficient number, since it is larger than the sum of its proper divisors (805).

72203 is a wasteful number, since it uses less digits than its factorization.

72203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804.

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 72203 is about 268.7061592149. The cubic root of 72203 is about 41.6407376456.

The spelling of 72203 in words is "seventy-two thousand, two hundred three", and thus it is an iban number.