41857 has 4 divisors (see below), whose sum is σ = 44080. Its totient is φ = 39636.

The previous prime is 41851. The next prime is 41863. The reversal of 41857 is 75814.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75814 = 2 ⋅37907.

It is an interprime number because it is at equal distance from previous prime (41851) and next prime (41863).

It is a cyclic number.

It is not a de Polignac number, because 41857 - 2³ = 41849 is a prime.

It is an Ulam number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (41851) 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, 1083 + ... + 1120.

It is an arithmetic number, because the mean of its divisors is an integer number (11020).

2⁴¹⁸⁵⁷ is an apocalyptic number.

It is an amenable number.

41857 is a deficient number, since it is larger than the sum of its proper divisors (2223).

41857 is a wasteful number, since it uses less digits than its factorization.

41857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222.

The product of its digits is 1120, while the sum is 25.

The square root of 41857 is about 204.5898335695. The cubic root of 41857 is about 34.7207714475.

It can be divided in two parts, 41 and 857, that added together give a palindrome (898).

The spelling of 41857 in words is "forty-one thousand, eight hundred fifty-seven".