395939 has 4 divisors (see below), whose sum is σ = 397200. Its totient is φ = 394680.

The previous prime is 395921. The next prime is 395953. The reversal of 395939 is 939593.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 939593 = 43 ⋅21851.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395909) 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, 269 + ... + 929.

It is an arithmetic number, because the mean of its divisors is an integer number (99300).

2³⁹⁵⁹³⁹ is an apocalyptic number.

395939 is a deficient number, since it is larger than the sum of its proper divisors (1261).

395939 is an equidigital number, since it uses as much as digits as its factorization.

395939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260.

The product of its digits is 32805, while the sum is 38.

The square root of 395939 is about 629.2368393538. The cubic root of 395939 is about 73.4304338154.

The spelling of 395939 in words is "three hundred ninety-five thousand, nine hundred thirty-nine".