395866 has 4 divisors (see below), whose sum is σ = 593802. Its totient is φ = 197932.

The previous prime is 395851. The next prime is 395873. The reversal of 395866 is 668593.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 395641 + 225 = 629^2 + 15^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98965 + ... + 98968.

2³⁹⁵⁸⁶⁶ is an apocalyptic number.

395866 is a deficient number, since it is larger than the sum of its proper divisors (197936).

395866 is a wasteful number, since it uses less digits than its factorization.

395866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197935.

The product of its digits is 38880, while the sum is 37.

The square root of 395866 is about 629.1788299045. The cubic root of 395866 is about 73.4259207034.

The spelling of 395866 in words is "three hundred ninety-five thousand, eight hundred sixty-six".