7903 has 4 divisors (see below), whose sum is σ = 9040. Its totient is φ = 6768.

The previous prime is 7901. The next prime is 7907. The reversal of 7903 is 3097.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3097 = 19 ⋅163.

It is a cyclic number.

It is not a de Polignac number, because 7903 - 2¹ = 7901 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558 + ... + 571.

It is an arithmetic number, because the mean of its divisors is an integer number (2260).

2⁷⁹⁰³ is an apocalyptic number.

7903 is a deficient number, since it is larger than the sum of its proper divisors (1137).

7903 is a wasteful number, since it uses less digits than its factorization.

7903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136.

The product of its (nonzero) digits is 189, while the sum is 19.

The square root of 7903 is about 88.8988188898. The cubic root of 7903 is about 19.9188377466.

The spelling of 7903 in words is "seven thousand, nine hundred three".