68869 has 4 divisors (see below), whose sum is σ = 70060. Its totient is φ = 67680.

The previous prime is 68863. The next prime is 68879. The reversal of 68869 is 96886.

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 3844 + 65025 = 62^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 68869 - 2¹¹ = 66821 is a prime.

It is a super-2 number, since 2×68869² = 9485878322, which contains 22 as substring.

It is a Duffinian number.

68869 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504 + ... + 625.

It is an arithmetic number, because the mean of its divisors is an integer number (17515).

2⁶⁸⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

68869 is a deficient number, since it is larger than the sum of its proper divisors (1191).

68869 is a wasteful number, since it uses less digits than its factorization.

68869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190.

The product of its digits is 20736, while the sum is 37.

The square root of 68869 is about 262.4290380274. The cubic root of 68869 is about 40.9896860830.

Multiplying 68869 by its sum of digits (37), we get a triangular number (2548153 = T₂₂₅₇).

It can be divided in two parts, 688 and 69, that added together give a palindrome (757).

The spelling of 68869 in words is "sixty-eight thousand, eight hundred sixty-nine".