395979 has 8 divisors (see below), whose sum is σ = 555840. Its totient is φ = 250056.

The previous prime is 395971. The next prime is 396001. The reversal of 395979 is 979593.

It is a happy number.

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

It is not a de Polignac number, because 395979 - 2³ = 395971 is a prime.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 395979.

It is not an unprimeable number, because it can be changed into a prime (395971) 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, 3417 + ... + 3530.

It is an arithmetic number, because the mean of its divisors is an integer number (69480).

2³⁹⁵⁹⁷⁹ is an apocalyptic number.

395979 is a deficient number, since it is larger than the sum of its proper divisors (159861).

395979 is a wasteful number, since it uses less digits than its factorization.

395979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6969.

The product of its digits is 76545, while the sum is 42.

The square root of 395979 is about 629.2686230856. The cubic root of 395979 is about 73.4329065182.

The spelling of 395979 in words is "three hundred ninety-five thousand, nine hundred seventy-nine".