980823 has 4 divisors (see below), whose sum is σ = 1307768. Its totient is φ = 653880.

The previous prime is 980803. The next prime is 980827. The reversal of 980823 is 328089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328089 = 3 ⋅109363.

It is not a de Polignac number, because 980823 - 2¹² = 976727 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980827) 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, 163468 + ... + 163473.

It is an arithmetic number, because the mean of its divisors is an integer number (326942).

2⁹⁸⁰⁸²³ is an apocalyptic number.

980823 is a deficient number, since it is larger than the sum of its proper divisors (326945).

980823 is a wasteful number, since it uses less digits than its factorization.

980823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326944.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 980823 is about 990.3650841988. The cubic root of 980823 is about 99.3566363758.

The spelling of 980823 in words is "nine hundred eighty thousand, eight hundred twenty-three".