391395 has 16 divisors (see below), whose sum is σ = 635040. Its totient is φ = 205824.

The previous prime is 391393. The next prime is 391397. The reversal of 391395 is 593193.

It is an interprime number because it is at equal distance from previous prime (391393) and next prime (391397).

It is not a de Polignac number, because 391395 - 2¹ = 391393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (391393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1321 + ... + 1589.

It is an arithmetic number, because the mean of its divisors is an integer number (39690).

2³⁹¹³⁹⁵ is an apocalyptic number.

391395 is a deficient number, since it is larger than the sum of its proper divisors (243645).

391395 is a wasteful number, since it uses less digits than its factorization.

391395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374.

The product of its digits is 3645, while the sum is 30.

The square root of 391395 is about 625.6156967340. The cubic root of 391395 is about 73.1484437944.

The spelling of 391395 in words is "three hundred ninety-one thousand, three hundred ninety-five".