395389 has 4 divisors (see below), whose sum is σ = 397120. Its totient is φ = 393660.

The previous prime is 395383. The next prime is 395407. The reversal of 395389 is 983593.

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 395389 - 2⁷ = 395261 is a prime.

It is a super-2 number, since 2×395389² = 312664922642, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395383) 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, 459 + ... + 1000.

It is an arithmetic number, because the mean of its divisors is an integer number (99280).

2³⁹⁵³⁸⁹ is an apocalyptic number.

It is an amenable number.

395389 is a deficient number, since it is larger than the sum of its proper divisors (1731).

395389 is a wasteful number, since it uses less digits than its factorization.

395389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730.

The product of its digits is 29160, while the sum is 37.

The square root of 395389 is about 628.7996501271. The cubic root of 395389 is about 73.3964172509.

It can be divided in two parts, 395 and 389, that added together give a square (784 = 28²).

The spelling of 395389 in words is "three hundred ninety-five thousand, three hundred eighty-nine".