68877 has 8 divisors (see below), whose sum is σ = 102080. Its totient is φ = 45900.
The previous prime is 68863. The next prime is 68879. The reversal of 68877 is 77886.
It is a happy number.
It is not a de Polignac number, because 68877 - 26 = 68813 is a prime.
It is a super-2 number, since 2×688772 = 9488082258, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68879) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249 + ... + 1302.
It is an arithmetic number, because the mean of its divisors is an integer number (12760).
268877 is an apocalyptic number.
It is an amenable number.
68877 is a deficient number, since it is larger than the sum of its proper divisors (33203).
68877 is a wasteful number, since it uses less digits than its factorization.
68877 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2560 (or 2554 counting only the distinct ones).
The product of its digits is 18816, while the sum is 36.
The square root of 68877 is about 262.4442798005. Note that the first 3 decimals coincide. The cubic root of 68877 is about 40.9912731773.
Subtracting 68877 from its reverse (77886), we obtain a palindrome (9009).
The spelling of 68877 in words is "sixty-eight thousand, eight hundred seventy-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.000 sec. • engine limits •