395689 has 4 divisors (see below), whose sum is σ = 452224. Its totient is φ = 339156.

The previous prime is 395687. The next prime is 395701. The reversal of 395689 is 986593.

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.

It is a cyclic number.

It is not a de Polignac number, because 395689 - 2¹ = 395687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395687) 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, 28257 + ... + 28270.

It is an arithmetic number, because the mean of its divisors is an integer number (113056).

2³⁹⁵⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

395689 is a deficient number, since it is larger than the sum of its proper divisors (56535).

395689 is an equidigital number, since it uses as much as digits as its factorization.

395689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56534.

The product of its digits is 58320, while the sum is 40.

The square root of 395689 is about 629.0381546456. The cubic root of 395689 is about 73.4149756484.

The spelling of 395689 in words is "three hundred ninety-five thousand, six hundred eighty-nine".