978103 has 4 divisors (see below), whose sum is σ = 1117840. Its totient is φ = 838368.

The previous prime is 978091. The next prime is 978113. The reversal of 978103 is 301879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301879 = 127 ⋅2377.

It is a cyclic number.

It is not a de Polignac number, because 978103 - 2⁵ = 978071 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978113) 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, 69858 + ... + 69871.

It is an arithmetic number, because the mean of its divisors is an integer number (279460).

2⁹⁷⁸¹⁰³ is an apocalyptic number.

978103 is a deficient number, since it is larger than the sum of its proper divisors (139737).

978103 is a wasteful number, since it uses less digits than its factorization.

978103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139736.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 978103 is about 988.9908998570. The cubic root of 978103 is about 99.2647066888.

It can be divided in two parts, 978 and 103, that added together give a triangular number (1081 = T₄₆).

The spelling of 978103 in words is "nine hundred seventy-eight thousand, one hundred three".