393995 has 8 divisors (see below), whose sum is σ = 540384. Its totient is φ = 270144.

The previous prime is 393989. The next prime is 393997. The reversal of 393995 is 599393.

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

It is not a de Polignac number, because 393995 - 2⁶ = 393931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (393997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5594 + ... + 5663.

It is an arithmetic number, because the mean of its divisors is an integer number (67548).

2³⁹³⁹⁹⁵ is an apocalyptic number.

393995 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

393995 is a deficient number, since it is larger than the sum of its proper divisors (146389).

393995 is a wasteful number, since it uses less digits than its factorization.

393995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11269.

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

The square root of 393995 is about 627.6902102152. The cubic root of 393995 is about 73.3100591890.

The spelling of 393995 in words is "three hundred ninety-three thousand, nine hundred ninety-five".