978303 has 4 divisors (see below), whose sum is σ = 1304408. Its totient is φ = 652200.

The previous prime is 978287. The next prime is 978323. The reversal of 978303 is 303879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303879 = 3 ⋅101293.

It is not a de Polignac number, because 978303 - 2⁴ = 978287 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 (978323) 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, 163048 + ... + 163053.

It is an arithmetic number, because the mean of its divisors is an integer number (326102).

2⁹⁷⁸³⁰³ is an apocalyptic number.

978303 is a deficient number, since it is larger than the sum of its proper divisors (326105).

978303 is a wasteful number, since it uses less digits than its factorization.

978303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326104.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 978303 is about 989.0920078537. The cubic root of 978303 is about 99.2714720255.

The spelling of 978303 in words is "nine hundred seventy-eight thousand, three hundred three".