57869 has 6 divisors (see below), whose sum is σ = 67374. Its totient is φ = 49560.

The previous prime is 57859. The next prime is 57881. The reversal of 57869 is 96875.

57869 = T₂₂ + T₂₃ + ... + T₇₀.

It can be written as a sum of positive squares in only one way, i.e., 56644 + 1225 = 238^2 + 35^2 .

It is not a de Polignac number, because 57869 - 2⁴ = 57853 is a prime.

It is a super-2 number, since 2×57869² = 6697642322, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57809) 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, 542 + ... + 639.

It is an arithmetic number, because the mean of its divisors is an integer number (11229).

2⁵⁷⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

57869 is a deficient number, since it is larger than the sum of its proper divisors (9505).

57869 is a wasteful number, since it uses less digits than its factorization.

57869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195 (or 1188 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 57869 is about 240.5597638842. The cubic root of 57869 is about 38.6796016310.

The spelling of 57869 in words is "fifty-seven thousand, eight hundred sixty-nine".