395889 has 8 divisors (see below), whose sum is σ = 568512. Its totient is φ = 243600.

The previous prime is 395887. The next prime is 395891. The reversal of 395889 is 988593.

It is an interprime number because it is at equal distance from previous prime (395887) and next prime (395891).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 395889 - 2¹ = 395887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 395889.

It is not an unprimeable number, because it can be changed into a prime (395887) 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, 5037 + ... + 5114.

It is an arithmetic number, because the mean of its divisors is an integer number (71064).

2³⁹⁵⁸⁸⁹ is an apocalyptic number.

395889 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

395889 is a deficient number, since it is larger than the sum of its proper divisors (172623).

395889 is a wasteful number, since it uses less digits than its factorization.

395889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10167.

The product of its digits is 77760, while the sum is 42.

The square root of 395889 is about 629.1971074314. The cubic root of 395889 is about 73.4273427026.

Subtracting 395889 from its reverse (988593), we obtain a cube (592704 = 84³).

The spelling of 395889 in words is "three hundred ninety-five thousand, eight hundred eighty-nine".