68319 has 6 divisors (see below), whose sum is σ = 98696. Its totient is φ = 45540.
The previous prime is 68311. The next prime is 68329. The reversal of 68319 is 91386.
It is not a de Polignac number, because 68319 - 23 = 68311 is a prime.
It is a super-2 number, since 2×683192 = 9334971522, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 68292 and 68301.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68311) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3787 + ... + 3804.
268319 is an apocalyptic number.
68319 is a deficient number, since it is larger than the sum of its proper divisors (30377).
68319 is a wasteful number, since it uses less digits than its factorization.
68319 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7597 (or 7594 counting only the distinct ones).
The product of its digits is 1296, while the sum is 27.
The square root of 68319 is about 261.3790351195. The cubic root of 68319 is about 40.8802773536.
The spelling of 68319 in words is "sixty-eight thousand, three hundred nineteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •