678003 has 4 divisors (see below), whose sum is σ = 904008. Its totient is φ = 452000.

The previous prime is 677983. The next prime is 678023. The reversal of 678003 is 300876.

678003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (677983) and next prime (678023).

It is a cyclic number.

It is not a de Polignac number, because 678003 - 2¹⁰ = 676979 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (678023) 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, 112998 + ... + 113003.

It is an arithmetic number, because the mean of its divisors is an integer number (226002).

2⁶⁷⁸⁰⁰³ is an apocalyptic number.

678003 is a deficient number, since it is larger than the sum of its proper divisors (226005).

678003 is a wasteful number, since it uses less digits than its factorization.

678003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226004.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 678003 is about 823.4093757057. The cubic root of 678003 is about 87.8504260089.

Adding to 678003 its reverse (300876), we get a palindrome (978879).

The spelling of 678003 in words is "six hundred seventy-eight thousand, three".