22903 has 4 divisors (see below), whose sum is σ = 23560. Its totient is φ = 22248.

The previous prime is 22901. The next prime is 22907. The reversal of 22903 is 30922.

22903 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30922 = 2 ⋅15461.

It is a cyclic number.

It is not a de Polignac number, because 22903 - 2¹ = 22901 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273 + ... + 346.

It is an arithmetic number, because the mean of its divisors is an integer number (5890).

2²²⁹⁰³ is an apocalyptic number.

22903 is a deficient number, since it is larger than the sum of its proper divisors (657).

22903 is an equidigital number, since it uses as much as digits as its factorization.

22903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 22903 is about 151.3373714586. The cubic root of 22903 is about 28.3986344645.

The spelling of 22903 in words is "twenty-two thousand, nine hundred three".