56869 has 8 divisors (see below), whose sum is σ = 61560. Its totient is φ = 52416.

The previous prime is 56857. The next prime is 56873. The reversal of 56869 is 96865.

56869 = T₁₂ + T₁₃ + ... + T₆₉.

It can be written as a sum of positive squares in 4 ways, for example, as 26244 + 30625 = 162^2 + 175^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56869 - 2¹³ = 48677 is a prime.

It is a super-2 number, since 2×56869² = 6468166322, which contains 22 as substring.

It is a Duffinian number.

56869 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1047 + ... + 1099.

It is an arithmetic number, because the mean of its divisors is an integer number (7695).

2⁵⁶⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

56869 is a deficient number, since it is larger than the sum of its proper divisors (4691).

56869 is a wasteful number, since it uses less digits than its factorization.

56869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119.

The product of its digits is 12960, while the sum is 34.

The square root of 56869 is about 238.4722206044. The cubic root of 56869 is about 38.4555060283.

The spelling of 56869 in words is "fifty-six thousand, eight hundred sixty-nine".