69385 has 4 divisors (see below), whose sum is σ = 83268. Its totient is φ = 55504.

The previous prime is 69383. The next prime is 69389. The reversal of 69385 is 58396.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13689 + 55696 = 117^2 + 236^2 .

It is a cyclic number.

It is not a de Polignac number, because 69385 - 2¹ = 69383 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

69385 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (69383) 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 3 ways as a sum of consecutive naturals, for example, 6934 + ... + 6943.

It is an arithmetic number, because the mean of its divisors is an integer number (20817).

2⁶⁹³⁸⁵ is an apocalyptic number.

It is an amenable number.

69385 is a deficient number, since it is larger than the sum of its proper divisors (13883).

69385 is a wasteful number, since it uses less digits than its factorization.

69385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13882.

The product of its digits is 6480, while the sum is 31.

The square root of 69385 is about 263.4103262972. The cubic root of 69385 is about 41.0918030156.

It can be divided in two parts, 69 and 385, that multiplied together give a triangular number (26565 = T₂₃₀).

The spelling of 69385 in words is "sixty-nine thousand, three hundred eighty-five".