395109 has 24 divisors (see below), whose sum is σ = 672672. Its totient is φ = 220320.

The previous prime is 395107. The next prime is 395111. The reversal of 395109 is 901593.

It is an interprime number because it is at equal distance from previous prime (395107) and next prime (395111).

It is not a de Polignac number, because 395109 - 2¹ = 395107 is a prime.

It is a super-2 number, since 2×395109² = 312222243762, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1134 + ... + 1440.

It is an arithmetic number, because the mean of its divisors is an integer number (28028).

2³⁹⁵¹⁰⁹ is an apocalyptic number.

395109 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

395109 is a deficient number, since it is larger than the sum of its proper divisors (277563).

395109 is a wasteful number, since it uses less digits than its factorization.

395109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 395109 is about 628.5769642613. The cubic root of 395109 is about 73.3790876086.

The spelling of 395109 in words is "three hundred ninety-five thousand, one hundred nine".