82403 has 4 divisors (see below), whose sum is σ = 86760. Its totient is φ = 78048.

The previous prime is 82393. The next prime is 82421. The reversal of 82403 is 30428.

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 82403 - 2⁴ = 82387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82463) 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, 2150 + ... + 2187.

It is an arithmetic number, because the mean of its divisors is an integer number (21690).

2⁸²⁴⁰³ is an apocalyptic number.

82403 is a deficient number, since it is larger than the sum of its proper divisors (4357).

82403 is a wasteful number, since it uses less digits than its factorization.

82403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 82403 is about 287.0592273382. The cubic root of 82403 is about 43.5158703707.

The spelling of 82403 in words is "eighty-two thousand, four hundred three".