79403 has 4 divisors (see below), whose sum is σ = 79968. Its totient is φ = 78840.

The previous prime is 79399. The next prime is 79411. The reversal of 79403 is 30497.

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.

It is a cyclic number.

It is not a de Polignac number, because 79403 - 2² = 79399 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79423) 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, 125 + ... + 417.

It is an arithmetic number, because the mean of its divisors is an integer number (19992).

2⁷⁹⁴⁰³ is an apocalyptic number.

79403 is a deficient number, since it is larger than the sum of its proper divisors (565).

79403 is a wasteful number, since it uses less digits than its factorization.

79403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 79403 is about 281.7853793226. The cubic root of 79403 is about 42.9812429459.

The spelling of 79403 in words is "seventy-nine thousand, four hundred three".