57845 has 8 divisors (see below), whose sum is σ = 72576. Its totient is φ = 44176.

The previous prime is 57839. The next prime is 57847. The reversal of 57845 is 54875.

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 57845 - 2⁴ = 57829 is a prime.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57847) 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, 137 + ... + 366.

It is an arithmetic number, because the mean of its divisors is an integer number (9072).

2⁵⁷⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

57845 is a deficient number, since it is larger than the sum of its proper divisors (14731).

57845 is a wasteful number, since it uses less digits than its factorization.

57845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531.

The product of its digits is 5600, while the sum is 29.

The square root of 57845 is about 240.5098750571. The cubic root of 57845 is about 38.6742536968.

It can be divided in two parts, 5784 and 5, that multiplied together give a triangular number (28920 = T₂₄₀).

The spelling of 57845 in words is "fifty-seven thousand, eight hundred forty-five".