678293 has 16 divisors (see below), whose sum is σ = 884736. Its totient is φ = 504240.

The previous prime is 678289. The next prime is 678299. The reversal of 678293 is 392876.

678293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 678293 - 2² = 678289 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678299) 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, 1580 + ... + 1962.

It is an arithmetic number, because the mean of its divisors is an integer number (55296).

2⁶⁷⁸²⁹³ is an apocalyptic number.

It is an amenable number.

678293 is a deficient number, since it is larger than the sum of its proper divisors (206443).

678293 is a wasteful number, since it uses less digits than its factorization.

678293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424.

The product of its digits is 18144, while the sum is 35.

The square root of 678293 is about 823.5854539755. The cubic root of 678293 is about 87.8629495484.

The spelling of 678293 in words is "six hundred seventy-eight thousand, two hundred ninety-three".