67775 has 6 divisors (see below), whose sum is σ = 84072. Its totient is φ = 54200.

The previous prime is 67763. The next prime is 67777. The reversal of 67775 is 57776.

It is a happy number.

It is not a de Polignac number, because 67775 - 2⁴ = 67759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 67775.

It is not an unprimeable number, because it can be changed into a prime (67777) 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, 1331 + ... + 1380.

It is an arithmetic number, because the mean of its divisors is an integer number (14012).

2⁶⁷⁷⁷⁵ is an apocalyptic number.

67775 is a deficient number, since it is larger than the sum of its proper divisors (16297).

67775 is a wasteful number, since it uses less digits than its factorization.

67775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721 (or 2716 counting only the distinct ones).

The product of its digits is 10290, while the sum is 32.

The square root of 67775 is about 260.3363209389. The cubic root of 67775 is about 40.7714830204.

Subtracting from 67775 its reverse (57776), we obtain a palindrome (9999).

The spelling of 67775 in words is "sixty-seven thousand, seven hundred seventy-five".