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68887 = 713757
BaseRepresentation
bin10000110100010111
310111111101
4100310113
54201022
61250531
7404560
oct206427
9114441
1068887
1147835
1233a47
1325480
141b167
1515627
hex10d17

68887 has 8 divisors (see below), whose sum is σ = 84896. Its totient is φ = 54432.

The previous prime is 68881. The next prime is 68891. The reversal of 68887 is 78886.

68887 is nontrivially palindromic in base 3.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68887 - 23 = 68879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288 + ... + 469.

It is an arithmetic number, because the mean of its divisors is an integer number (10612).

268887 is an apocalyptic number.

68887 is a deficient number, since it is larger than the sum of its proper divisors (16009).

68887 is a wasteful number, since it uses less digits than its factorization.

68887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777.

The product of its digits is 21504, while the sum is 37.

The square root of 68887 is about 262.4633307721. The cubic root of 68887 is about 40.9932568724.

Subtracting 68887 from its reverse (78886), we obtain a palindrome (9999).

The spelling of 68887 in words is "sixty-eight thousand, eight hundred eighty-seven".

Divisors: 1 7 13 91 757 5299 9841 68887