978593 has 16 divisors (see below), whose sum is σ = 1244160. Its totient is φ = 747600.

The previous prime is 978569. The next prime is 978599. The reversal of 978593 is 395879.

It is not a de Polignac number, because 978593 - 2⁸ = 978337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 978593.

It is not an unprimeable number, because it can be changed into a prime (978599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5378 + ... + 5556.

It is an arithmetic number, because the mean of its divisors is an integer number (77760).

2⁹⁷⁸⁵⁹³ is an apocalyptic number.

It is an amenable number.

978593 is a deficient number, since it is larger than the sum of its proper divisors (265567).

978593 is a wasteful number, since it uses less digits than its factorization.

978593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268.

The product of its digits is 68040, while the sum is 41.

The square root of 978593 is about 989.2385960930. The cubic root of 978593 is about 99.2812801261.

The spelling of 978593 in words is "nine hundred seventy-eight thousand, five hundred ninety-three".