80403 has 4 divisors (see below), whose sum is σ = 107208. Its totient is φ = 53600.

The previous prime is 80387. The next prime is 80407. The reversal of 80403 is 30408.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80403 - 2⁴ = 80387 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (80407) 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, 13398 + ... + 13403.

It is an arithmetic number, because the mean of its divisors is an integer number (26802).

2⁸⁰⁴⁰³ is an apocalyptic number.

80403 is a deficient number, since it is larger than the sum of its proper divisors (26805).

80403 is a wasteful number, since it uses less digits than its factorization.

80403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26804.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 80403 is about 283.5542276179. The cubic root of 80403 is about 43.1609257449.

The spelling of 80403 in words is "eighty thousand, four hundred three".