395857 has 16 divisors (see below), whose sum is σ = 508032. Its totient is φ = 299520.

The previous prime is 395851. The next prime is 395873. The reversal of 395857 is 758593.

It is a cyclic number.

It is not a de Polignac number, because 395857 - 2³ = 395849 is a prime.

Its product of digits (37800) is a multiple of the sum of its prime divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395851) 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 15 ways as a sum of consecutive naturals, for example, 4033 + ... + 4129.

It is an arithmetic number, because the mean of its divisors is an integer number (31752).

2³⁹⁵⁸⁵⁷ is an apocalyptic number.

It is an amenable number.

395857 is a deficient number, since it is larger than the sum of its proper divisors (112175).

395857 is a wasteful number, since it uses less digits than its factorization.

395857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168.

The product of its digits is 37800, while the sum is 37.

The square root of 395857 is about 629.1716776842. The cubic root of 395857 is about 73.4253642539.

The spelling of 395857 in words is "three hundred ninety-five thousand, eight hundred fifty-seven".