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68873 = 79839
BaseRepresentation
bin10000110100001001
310111110212
4100310021
54200443
61250505
7404540
oct206411
9114425
1068873
1147822
1233a35
132546c
141b157
1515618
hex10d09

68873 has 4 divisors (see below), whose sum is σ = 78720. Its totient is φ = 59028.

The previous prime is 68863. The next prime is 68879. The reversal of 68873 is 37886.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68873 - 214 = 52489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68879) 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, 4913 + ... + 4926.

It is an arithmetic number, because the mean of its divisors is an integer number (19680).

268873 is an apocalyptic number.

It is an amenable number.

68873 is a deficient number, since it is larger than the sum of its proper divisors (9847).

68873 is an equidigital number, since it uses as much as digits as its factorization.

68873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9846.

The product of its digits is 8064, while the sum is 32.

The square root of 68873 is about 262.4366590246. The cubic root of 68873 is about 40.9904796455.

The spelling of 68873 in words is "sixty-eight thousand, eight hundred seventy-three".

Divisors: 1 7 9839 68873