69775 has 6 divisors (see below), whose sum is σ = 86552. Its totient is φ = 55800.

The previous prime is 69767. The next prime is 69779. The reversal of 69775 is 57796.

It is not a de Polignac number, because 69775 - 2³ = 69767 is a prime.

It is a Duffinian number.

69775 is a lucky number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 69775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69779) 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 5 ways as a sum of consecutive naturals, for example, 1371 + ... + 1420.

2⁶⁹⁷⁷⁵ is an apocalyptic number.

69775 is a deficient number, since it is larger than the sum of its proper divisors (16777).

69775 is a wasteful number, since it uses less digits than its factorization.

69775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801 (or 2796 counting only the distinct ones).

The product of its digits is 13230, while the sum is 34.

The square root of 69775 is about 264.1495788374. The cubic root of 69775 is about 41.1686489745.

The spelling of 69775 in words is "sixty-nine thousand, seven hundred seventy-five".