76869 has 20 divisors (see below), whose sum is σ = 125356. Its totient is φ = 46656.

The previous prime is 76847. The next prime is 76871. The reversal of 76869 is 96867.

It can be written as a sum of positive squares in 2 ways, for example, as 26244 + 50625 = 162^2 + 225^2 .

It is not a de Polignac number, because 76869 - 2⁵ = 76837 is a prime.

It is a super-2 number, since 2×76869² = 11817686322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76819) 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 19 ways as a sum of consecutive naturals, for example, 1017 + ... + 1089.

2⁷⁶⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

76869 is a deficient number, since it is larger than the sum of its proper divisors (48487).

76869 is a wasteful number, since it uses less digits than its factorization.

76869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 89 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 76869 is about 277.2525924135. The cubic root of 76869 is about 42.5190687210.

The spelling of 76869 in words is "seventy-six thousand, eight hundred sixty-nine".